The Wikidata documentation is good: https://www.wikidata.org/wiki/Wikidata:Introduction https://www.wikidata.org/wiki/Wikidata:Introduction And you can find l

The Wikidata documentation is good: https://www.wikidata.org/wiki/Wikidata:Introduction https://www.wikidata.org/wiki/Wikidata:Introduction And you can find lots of SPARQL examples here: https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/examples https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/...