Did {Holy_Roman_Empire} {official language} {Dutch} and {Hungarian} ?
Is it true that the official languages of the Holy Roman Empire were Dutch and Hungarian?
Were Dutch and Hungarian the official languages of the Holy Roman Empire?
ASK WHERE { resource:Holy_Roman_Empire property:official_language resource:Hungarian . resource:Holy_Roman_Empire property:official_language resource:Dutch }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q12548> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P37> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q7411>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q12548> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P37> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q9067>. } 
ASK WHERE { wd:Q12548 wdt:P37 wd:Q7411 . wd:Q12548 wdt:P37 wd:Q9067 }