SPARQL/Templates

Within Wikidata Query Service Query Helper the comment #TEMPLATE can build a simple template where the user can choose one or more variables to change a query without needing to know the SPARQL query language. See below an example to select presidents and their spouses from any country: TEMPLATE={"template":"Presidents of ?country and their spouses","variables":{"?country":{"query":" SELECT ?id WHERE { ?id wdt:P31 wd:Q6256 . }"} } } SELECT ?p ?pLabel ?ppicture ?w ?wLabel ?wpicture WHERE { BIND(wd:Q30 AS ?country) # United States of America ?country (p:P6/ps:P6) ?p. # Head of government ?p wdt:P26 ?w. # Spouse OPTIONAL { ?p wdt:P18 ?ppicture. ?w wdt:P18 ?wpicture. } SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". } } The "template" contains the texts and one ore more variables. The "variables" list the variables and optionally a "query" to select possible values, in this case ?id is instance of country. If no query is needed the syntax is "?var1":{} In that case that might be #TEMPLATE={"template":"Presidents of ?country and their spouses","variables":{"?country":{} } } Mind: BIND(wd:Q30 AS ?country) is used as a default for the variable ?country. References Wikidata:SPARQL query service/Query Helper Wikidata:SPARQL query service/queries/examples