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Wikidata:Glosar

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This page is a translated version of the page Wikidata:Glossary and the translation is 3% complete.
Outdated translations are marked like this.

Elements of a statement, from item Q42

Wikidata jo datowa banka wědy, kótaruž kuždy móžo wobźěłaś. Toś ten bok jo referenca za wužywarjow a wopytujo konsistencu w terminologiji napóraś, kótaraž naźejucy pomaga, diskusiju a komunikaciju mjazy wobźěłarjami polěpšyś.

Glosar
Aliase (na wužywarskem pówjerchu teke znate ako pomjenjone) su alternatiwne mjenja za elementy, kakosći a napšašowanja, kótarež daju se na ten samski nałog kaž pomjenjenja (titele) za pytanje wužywaś. Pódobnje kaž pomjenjenja su wóne specifiske za rěc, ale na rozdźěl wót pomjenjenjow móžo tak wjele aliasow kaž trěbne daś. Glědaj Help:aliase
Article placeholder is an extension to display stub articles and to start Wikipedia articles based on a view of Wikidata items. See mw:Extension:ArticlePlaceholder.
Badge (wobznamjenje) jo družyna znamjenja, kótaraž pśidawa se sedłowemu wótkazoju, kótaraž na pśikład móžo nastawk ako "wjelicny nastawk" na specifiskem sedle identificěrowaś. To buźo funkcija w pśichoźe.
Category item, template item and module item are Wikidata items with sitelinks to categories, templates, or modules on Wikimedia sites. When the last sitelink is deleted, these items are generally deleted (see Wikidata:Database reports/to delete).
Claim (twarźenje) jo źěl wugronjenja bźez referencow.
Commons (or Wikimedia Commons) is a Wikimedia project to store images, audio, video and other files. Wikibase includes three different datatypes to link from Wikidata to media files, geographic shapes and tabular data. Commons is adding statements to files as mediaentities.
Completeness is an assessment of available data with a measure for coverage. At Wikidata the presence of an item or statement does not imply that all similar items or statements are present. Wikibase does not include any completeness indicator. Quantity properties can be used to compare with available statements or items. Example: The item about states of the USA has a statement with quantity 50. One can compare that with the count of uses of the item. A few tools attempt to measure completeness. To some extent, property suggester and suggestion constraints indicate elements missing to complete items.
Complex constraint (or custom constraint) is a constraint defined by a freely chosen SPARQL query in a template on a property talk page.
Conflation is a type of error, usually on an item, where aspects of several distinct concepts are mixed together. For example, an item with the date of birth of one person and the occupation of another person with the same name.
Constraint is a rule for how a particular property should be used. For instance most identifiers should have only one value, so there is a single value constraint on them. A special kind are called complex constraints.
Constraint report can refer to a series of periodically updated pages for each property based on constraints or a special page for an individual item or other entity.
Cradle is an editing tool to create new Wikidata items based on a form with predefined properties and values.
Datatypes (datowe typy, teke data value type abo value type) wóznamjenjuju družynu datowych gódnotow, kótaraž dajo se kakosći pśipokazaś, a kak składuju se datowe gódnoty w kuždem twarźenju. Glědaj Special:ListDatatypes za tuchylu k dispoziciji stojece datowe typy. Kuždej kakosći pśipokazujo se pśeddefiněrowany datowy typ.
Data namespaces are namespaces for pages that hold Wikidata entities. The data namespaces in Wikidata are the main namespace for the Wikidata items, "Property:" for properties, and "Lexeme:" for lexemes.
Date (or time or timeValue) is a datatype for property values. It allows to enter dates in different precisions and enables date calculations in queries. Hour or minute precision isn't supported. The Wikidata property for the date of foundation has such values.
Wopisanje (Description) jo za rěc specifiska wopisujuca fraza za element, kakosć abo napšašowanje. Pódawa kontekst za pomjenjenje (jo napśikład wjele elementow za městna z pomjenjenim "Cambridge"). Wopisanje njetrjeba pótakem jadnorazne byś, daniž w rěcy daniž w cełem projekśe, ale musy gromaźe z pomjenjenim jadnorazne byś. Jadnoraznosć za kombinaciju pomjenjenja a wopisanja jo kšuta nutnosć, kótaraž musy docynjona byś, nježli až změna dajo se składowaś.
Disambiguation item is a Wikidata item with sitelinks to disambiguation pages. This is its only purpose. Generally, it has a claim with je=Wikimedia-Begriffsklärungsseite.
Duplicate is an entity, generally an item, about the same concept as another entity. Duplicates are usually merged creating a redirecting entity. Special types of duplicates are temporary duplicates, permanent duplicates, and true duplicates.
Editing interface is a view that allows to add or modify data. These views are the default view, the Commons structured data interface, Wikidata bridge, and a series of API-based tools, notably QuickStatements, Cradle, PetScan, OpenRefine or the Pywikibot framework.

Entity (entita, teke data set (datowa sajźba)) jo bok Wikidata, kótaraž móžo pak element (w głownem mjenjowem rumje), kakosć (w kakosćowem mjenjowem rumje) pak napšašowanje (w napšašowańskem mjenjowem rumje) byś. Kužda entita identificěrujo se jasnje pśez entitowy ID, kótaryž jo prefigěrowany numer, kótaryž zachopina se na pśikład z prefiksom Q za element, P za kakosć a U za napšašowanje. Entita identificěrujo se teke pśez jednoraznu kombinaciju pomjenjenja a wopisanja w kuždej rěcy. Entiśe dajo se teke sajźba alternatiwnych wěcejrěcnych aliasow pśipokazaś. (W ontologijach a katalogach knigłownjow, kótarež wužywaju se ako referenca za Wikidata, jo entita zwětšego tema abo pśedmjat z realnego žywjenja abo jogo reprezentacija w datowej bance a wótpowědujo w tom konteksće tomu, což we Wikidata pomjenjujo se element.)

Other extensions may define new types of entities. For example:

Entity selector allows picking an entity by entering part of its name and selecting it from a list of search results. For items, the results are based on the labels and aliases. The description is displayed, if there is one. Example: type "human" to pick Q1156970 from "human (Q5) common name of Homo sapiens", "humanity (Q1156970) total world population of human", etc. This is different from the Property Suggester.
EntitySchema is a special type of Wikidata page containing a document in ShEx format, and related metadata. Although it may have labels, descriptions and aliases similar to items, it is not a type of entity. Entities may be validated against an EntitySchema using the ShEx2 — Simple Online Validator tool.
External identifier is a type of property — a string used in the database of external organizations. Some properties have external identifiers as values. They uniquely identify an item, although the uniqueness is not enforced by software, but controlled by constraint. For example, an ISBN for a book or the unique part of the URL of a movie or an actor in the Internet Movie Database.
Federation query is a query through a service available on Query Server allowing to access databases other than Wikidata.
Form is a string of characters that occurs in a particular grammatical context for a lexeme. Every Lexeme may have multiple forms. Forms are identified on each lexeme by the Lexeme ID followed by a dash, the letter "F" and a number. Forms may have statements just as other entities do. They are also assigned grammatical features such as "plural" for Form L1298-F2 ("forms").
Historic information is included by qualifying it with a date. If information is no longer current, date qualifiers are added instead of statements overwritten. Historic information is different from incorrect information
Human (or instance of human) is a Wikidata item about a person or an individual. It has a claim with je=cłowjek.
Incorrect information is a claim supported by a reference, but generally considered invalid or inaccurate. While Wikipedia generally excludes such information, Wikidata's deprecated rank allows to flag such statements. This helps avoid a situation in which it's deleted and erroneously re-added as valid information. Incorrect information is different from historic information
Instance of, subclass of, and has part (also class or type) are used on Wikidata to refer to the properties je, podrjadownja wot, wobsteji z(e), and a few other related ontological properties, their values, or items using them.
Item (element) jo bok w głownem mjenjowem rumje Wikidata, kótaryž reprezentěrujo "tema", "koncept" abo "pśedmjat" realnego žywjenja. Ako druge entity Wikidata identificěruju se elementy pśez entitowy ID (elementowy ID jo numer prefigěrowany z Q, na pś. Q1), a pśez jadnoraznu kombinaciju wěcejrěcnego pomjenjenja a wopisanja, a jomu dajo se teke alias pśipokazaś. Elementy zestajaju se ze sedłowych wótkazow k zwězanym bokam. Mógu teke z wugronjenjow wobstojaś, inkluziwnje póry kakosć-gódnota, a ze žrědłow. Pó pšawidłach relewance za Wikidata su tuchylu jano elementy dowólone, kótarež maju nanejmjenjej jaden sedłowy wótkaz k nastawkoju Wikipedije.
Item identifier: see QID below.
Label (pomjenjenje, teke znate ako name (mě)) jo mě za elementy, kakosći a napšašowanja. Zwětšego to jo nejwažnjejše mě, pód kótarymž zapisk jo znaty, abo nejpowšyknjejša abo lažko rozymliwa fraza, ako kótaraž jo znata w projekśe. We Wikidata ma rolu titela we Wikipediji a wužywa se ako primarny srědk, aby zapiski rozeznawaś. Za elementy njetrjeba jadnorazne byś, daniž w rěcy daniž w cełkownem projekśe, ale gromaźe z wopisanim musy jadnorazne byś. Za kakosći a napšašowanja (hyšći njedefiněrowane) musy w datej rěcy jadnorazne byś. Jadnoraznosć za kombinaciju pomjenjenja a wopisanja jo kšuta nuznosć, kótaraž musy docynjona byś, nježli až změna dajo se składowaś, lěcrownož se w pśichoźe snaź wótporajo.
Pomjenjenja by měli specifiske konwencije za wjelikopisanje swójskich mjenjow a frazow dateje rěcy wužywaś, kaž to pasujo za specifiski zapisk. W lisćinach wopisanja slěduju pomjenjenjeju, tak až pśidawa se ako jadnucki lisćinowy zapisk. Ako pomjenjenja a wopisanja daju se ekstrahěrowaś a njewótwisnje wužywaś. Glědaj Help:Label.
Lag or database lag at Wikidata is a delay in the update of data on other projects or Query Server.
Language attributes (= rěcne atributy) su wót rěcy wótwisne pomjenjenja, aliase a wopisanja, kótarež pśidawaju se elementam, kakosćam a napšašowanjam. Wóni su wót cłowjeka cytajobny tekst, aby rozměśe wobcerka elementa wólažcyło, na pśikład specifiski typ entity realnego swěta. Jolic feluju, někotare z nich daju se pśez znamuškowe rjeśazki z drugich rěcow wuměniś, kótarež funkcioněruju ako narownańske rěcy.
Language code is an identifier for the language of a label, description, alias, or monolingual text value. The language codes for labels, descriptions, and aliases are shared with other Wikimedia projects. More codes for monolingual text are defined specifically for Wikidata. Lexemes use some of these, as well as some additional codes or items to identify the language in lemma, gloss, and form. A language code is also assigned to sitelinks. Codes are based mostly on IETF language tags.
Language fallbacks (also language chains) are methods to systematically replace missing language attributes with strings from alternate languages. The exact replacement rules can be chosen depending on the type of page, whether the user is logged in, or the user preferred languages.
Lexeme is an entity of Lexicographical data. It contains sense and form sub-entities, but no sitelinks. Instead of a label, a description, and aliases, lexeme entities have a lemma (possibly more than one, for languages with spelling variants), a language, and a lexical category.
LID (or L number) The identifier for a lexeme entity in Wikidata, comprising the letter "L" followed by one or more digits.
Listeria (or Wikidata list) is a tool to show data from Wikidata in list form at Wikimedia projects. Data is periodically updated by bot.
Głowny mjenjowy rum jo mjenjowy rum, źož wšykne elementy su. Wuznamjenjujo se pśez felowanje prefiksa.
MediaWiki jo softwara, z kótarejuž projekty ako Wikipedija a Wikimedia Commons běže; glědaj MediaWiki.
MediaInfo is a type of entity used to describe files. It's activated on Wikimedia Commons.
Metaboki (meta pages) su wšykne boki, kótarež njejsu entity, t. gr. njesłušaju k datowym mjenjowym rumam. Metaboki Wikidata wopśimuju njestrukturěrowane wopśimjeśe, kótarež reprezentěrujo se pśez konwencionalny kod MediaWiki, a snaź teke pśez pśichodny klientowy zapśimowański kod Wikidata. Pśikłady su diskusijne boki, kategorijowe boki, projektowe boki (w mjenjowem rumje Wikidata) a boki pomocy (w mjenjowem rumje Help). Metaboki wopśimuju teke wopśimjeśe a daty, kótarež generěruju se awtomatiski pśez softwaru MediaWiki, na pśikład historiju změnow boka abo specialne boki.
Name item is a Wikidata item about a given name or a family name. Such items are used as values for swójźbne mě or pśedmě and can include additional information and sitelinks.
Namespace (mjenjowy rum) jo fyziske źělenje bokow w MediaWiki, aby jo pó wužywanju dogromady abo pó pśidatnem zaźarženju rědował. Pśikłady su mjenjowe rumy za kategorije, dataje, wužywarjow, a w paźe mjenjowych rumow Wikidata za elementy, kakosći a napšašowanja.
Object See Subject
Order of statements is generally determined by the view being used and not significant. Many views display data retrieved or entered first before other. Some views sort or allow to sort statements based on qualifier value, statement value, property, or datatype.
Page (bok) měni bok w někakem wikiju z jadnoraznym titelom, na pśikład nastawk (bok w głownem mjenjowym rumje Wikipedije). We Wikidata móžo se zapśimjeśe "bok" na entitowy bok (w datowych mjenjowych rumach), na metabok (w drugich mjenjowych rumach) abo na zwězany bok (eksterny bok we Wikipediji abo drugim projekśe Wikimedije) póśěgowaś, t. gr. na reference, kótarež wužywaju sedłowy wótkaz. Boki w głownem mjenjowem rumje Wikidata jadnaju wo elementach, a jaden bok móžo jano wó jadnem elemenśe jadnaś.
Predicate See Subject
Prefix Used in the query service.
Project is a term often used in the Wikimedia movement to refer to a Wikimedia wiki. In Wikidata, the term usually refers to Wikidata itself.
Property (kakosć) jo deskriptor za datowu gódnotu abo sajźbu gódnotow, ale nic datowa gódnota abo datowe gódnoty same. Kužde twarźenje na elementowem boku zwězujo z kakosću a pśipokazujo kakosći jadnu gódnotu abo někotare gódnoty. Kakosć składujo se ako entitowy bok w kakosćowem mjenjowem rumje a wopśimujo deklaraciju datowego typa kakosćowych gódnotow. Nowe kakosći naraźuju se a wobtwarźuju se na Wikidata:Property proposal. Wšykne kakosći by měli se na Wikidata:List of properties (WD:P) nalicyś. Wužywanje kakosći diskutěrujo se na jeje diskusijnem boku. Nejwěcej kakosćow dajo se pśez parametry infokašćika a kategorije Wikipedije zwobrazniś, glědaj Wikidata:Infoboxes task force. Zapśimowanje kakosćowych gódnotow do infokašćikow Wikipedije (z pomocu zapřimowańskeje syntakse) cyni se za kuždy infokašćik a Wikipedijowu wersiju jadnotliwje.
Property suggester provides a preselection of properties when adding statements to Wikidata items. These are based on the frequency of the properties on similar items. Example: on an item with je=cłowjek only, suggestions could be splah, pówołanje, datum narodźenja. These may or may not be appropriate for the specific item. This is different from entity selector and suggestion constraints.
QID (or Q number) is the unique identifier of a data item on Wikidata, comprising the letter "Q" followed by one or more digits. It is used to help people and machines understand the difference between items with the same or similar names. For example, there are several places in the world called London and many people called James Smith. This number appears next to the label at the top of each Wikidata item.
Qualifier (kwalifikator) jo źěl twarźenja, kótaryž groni něco wó specifiskem twarźenju, cesto na wopisujucy nałog. Kwalifikator móžo zapśimjeśe pó specifiskem wokabularje byś, ale móžo teke wšaka wopisujuca fraza byś (jolic toś te zapśimjeśa abo fraze su lichy tekst abo źěl wokabulara, by to nejskerjej nadawk zgromaźeństwa Wikidata było).
Quantity (incorrectly number) is a datatype for property values. It allows to enter integers or decimal numbers. Optionally a unit or a bound can be included. The Wikidata property for population has such values. Numeric identifiers are not quantities, but external identifiers.
Query (napšašowanje) jo pśeddefiněrowane pytanje pśez elementy. Napšašowanje jo wopisowaŕ za pśeddefiněrowane pytanje, ale nic trjefarje napórane pśez pytanje. Kužde pytanje wopisujo se a definěrujo se na swójom boku a ma swójski sprefigěrowany identifikator.
QuickStatements (QS) is a third-party tool that can edit Wikidata items, based on a simple set of text commands. The tool can add and remove statements, labels, descriptions, and aliases. It can also add statements with optional qualifiers and sources.
Rěd jo faktor kwality, kótaryž wužywa se za jadnore wuběranje/filtrowanje w padach, źož jo wjele wugronjenjow za danu kakosć. Su tśi móžne rědy:
Redirecting entity (or redirect) is an item or a lexeme that redirects to another item or lexeme (target). As in many uses these would need to be queried specifically, a bot usually replaces redirects used as values with their target.
Reference (= Referenca) abo source (= žrědło) wopisujo póchad wugronjenja we Wikidata. Žrědło same jo cesto element, na pśikład knigły. Wikidata njoco na pšašanje wótegroniś, lěc wugronjenje jo pšawe abo nic, ale jano, lěc wugronjenje ma referencu. Což su płaśiwe reference, ma se mjazy wobźěłarjami Wikidata debatěrowaś.
Repurposing is changing the definition or scope of an entity, in general an item, by editing its label, description or statements. Generally to be avoided.
Sandbox or sandbox items are series of items, properties and other entities at Wikidata to test features within the Wikidata live database. Examples: item Q4115189, property Property:P369, EntitySchema EntitySchema:E123, lexeme Lexeme:L123.
Sense refers to a specific meaning for a lexeme. Senses are identified on each lexeme by the Lexeme ID followed by a dash, the letter "S" and a number. Senses may have statements just as other entities do. They also allow a "gloss": a free-form description of the meaning (one per language).
Site (sedło, siteid) jo referenca na eksterne websedło w cyłku, ale w sedłowych wótkazach póśěgujo se na specifiske zregistrěrowane websedła, kótarež daju se za interne pytanje wužywaś. Toś te sedła referencuju se pśez globalne sedłowe identifikatory abo krotki siteid. Siteid dolnoserbskeje Wikipedije jo na pśikład dsbwiki. Zwětšego zachopnym pismikam slědujo póddomena zregistrěrowanego sedła na Wikimedijowych projektach. Wótkazowanje na take sedła mógu wobgranicowanja měś. W aktualnej instalaciji móžo kuždy eksterny bok jano jaden wótkaz měś, kótaryž jo we Wikidata zregistrěrowany a jaden element móžo jano jaden wótkaz ku kuždemu sedłu měś.
Sitelink (= sedłowy wótkaz) jo identifikacija zwězanego boka abo nastawka na drugem sedle Wikimedije ako na pś. w rěcnej wersiji Wikipedije. Zestaja se ze sedłowego identifikatora a titela sedłowego wótkaza (titel nastawka) a źo wót jadnotlwych elementow we Wikidata. Wužywa se ako za identificěrowanje elementa z eksternego sedła tak teke ako centralne składowanje mjazyrěcnych (mjazywikijowych) wótkazow. Sedłowe wótkaze mógu pśipowjesone wobznamjenja měś a pokazuju zwětšego, až bok jo status wjelicnego nastawka abo pódobny status měł. Glědaj Help:Sedłowe wótkaze.
Sitelinks between Wiktionary editions are generally not provided through Wikidata, but another function.
Snak is a technical term of Wikibase software which data users are most likely to encounter when accessing Wikidata through the MediaWiki API. It refers to the combination of a property and either a value or one of the special cases "no value" and "unknown value". Snaks can be found in claims (then they are called main snaks) or in qualifiers as part of statements (then they are called qualifier snaks). E.g., in the statement "Emma Watson was a cast member of Harry Potter and the Philosopher's Stone in the role of Hermione Granger" there is a main snak "was a cast member of Harry Potter and the Philosopher's Stone" and a qualifier snak "in the role of Hermione Granger".
Statement (=wugronjenje) jo jaden źěl datow wo elemenśe, kótaryž jo se na jadnem elementowem boku zapśimjeł. W nejjadnorjejšem paźe jo wugronjenje jano pór "kakosć: gódnota" (na pśikład "Kraj: Nimska"), ale cesto mógu wugronjenja dalšne kwalifikatory měś (na pśikład casne kwalifikatory). Glědaj datowy model. Wikidata njecynju gódanja na pšawosć wugronjenjow, ale gromaźi a dawa je k wěsći z referencu na žrědło. Glědaj Help:Wugronjenja.
String (krotko za character string, znamuškowy rjeśazk) jo powšykne zapśimjeśe za slěd licho wubranych znamuškow interpretěrowanych ako tekst na pś. "(Halo") - na rozdźěl wót datow interpretěrowanych ako numeriska gódnota (3,14), wótkaz k elementoju (na pś. [[Q1234]]) abo wěcej kompleksny datowy typ (sajźba {1,3,5,7} ). Wikidata buźo datowej typa "monolingual-text" a "multilingual-text" ako gódnotu kakosći pódpěraś, wobej stej datowej typa znamuškowego rjeśazka. Hypotetiska kakosć "pśedmě" za Abrahm Lincoln by na pśikład "Abraham" była.
Subject, predicate and object are terms sometimes used to describe a claim when viewing entity, property and value as a triple.
Suggestion constraint is a status of a property constraint that provides suggestions of additional improvements. This can be statements with other properties to be added to the item.
Term is a part of entity, includes label, description and alias. Terms may only be plain text (i.e. not containing any wiki markup).
Termbox is the zone at the top of an item page, which includes the labels, the descriptions, and the aliases in different languages.
Title (Titel) jo mě eksternego zwězanego boka (teke znaty ako titel sedłowego wótkaza), mě metaboka abo entitowy ID entitowego boka. Jolic bok njesłuša ku głownemu mjenjowemu rumoju, titel wopśimujo ID mjenjowego ruma.
Triple (or "semantic triple", or "triplet") is the atomic data entity in the RDF data model, which codifies statements in the form of subject–predicate–object expressions.
Unit is a Wikidata item used with a quantity-value. Frequently used units are metre or EUR, but any item could be used as unit. If the unit includes a Umrechnung in SI-Einheit statement, quantities with the unit are normalized based on that. See mw:Wikibase/Indexing/RDF Dump Format#Normalized values.
Values (gódnoty, abo datavalues (datowe gódnoty)) su informacije zasajźone w kuždem twarźenju. We wótwisnosći wót jich datowego typa, mógu jadnotliwa gódnota (kaž licba) abo gódnota, kótaraž zestaja se z někotarych źělow (kaž geografiske pozicije z dlinina a šyrina) byś. Internje su z twarźenjami pśez "snaks" zwězane.
Value type is the way values are stored internally. Each data type corresponds to one value type. For example, although external identifier, Commons media and mathematical expression are different datatypes, they all use the "string" value type. Values for some data types contain multiple parts with different value types. For example, a quantity contains four parts: "amount", "unit", "upperbound" and "lowerbound", the last two being optional. Unit is a URL which points to a Wikidata item; the other three parts are numbers in string (not floating-point number).
View is a way data can be visualized or accessed. Besides the default view, Wikibase offers views for mobile devices, as well as for rdf and json formats. The data can be accessed with an API. Data on Wikidata is mirrored on Wikidata Query Server offering various result views. Some of the views are editing views, others not. Examples of tools and extensions that provide custom views are Reasonator, Article Placeholder, and Listeria.
Wikibase jo softwara za Wikidata. Zestaja se z tśich rozšyrjenjow MediaWiki: Wikibase, Wikibase client a WikibaseLib. Rozšyrjenje Wikibase (za serwer Wikidata cesto repo pomjenjone) zmóžnja instalaciju MediaWiki za gromaźenje a wótwardowanje strukturěrowanych datow a buźo se na websedle Wikidata wužywaś. Rozšyrjenje Wikibase client (cesto jano client pomjenjony) zmóžnja instalacije MediaWiki, aby daty ze serwera Wikidata na jogo swójskich bokach napšašowało a zwobrazniło, a buźo se we Wikipedijach rozdźělnych rěcow a nejskerjej teke na drugich sedłach nałožowaś. Rozšyrjenje WikibaseLib ma zgromadne biblioteki za wobej głownej rozšyrjeni.
Wikidata jo projekt Wikimedije, w kótaremž běžy instanca MediaWiki z rozšyrjenjami Wikibase. Zmóžnja wobźěłarjam Wikidata, daty zapódaś a boki pśepytaś.
Wikidata Query Service (or WDQS) is the official service for querying Wikidata using the SPARQL query language.
Wikimedia is the name of a movement which consists of people and organizations. Wikidata is run by the Wikimedia Foundation together with other wikis such as Wikipedia. The Wikibase software is mainly developed by Wikimedia Germany which is one of the national Wikimedia affiliations.
Wiki is a website that can be edited by the visitors quickly. Wikipedia and Wikidata are wikis.

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