What is the {historical language} for {official language} of {Achaemenid Empire}
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What is the official historical language of Achaemenid Empire ?
SELECT DISTINCT ?o WHERE { resource:Achaemenid_Empire property:official_language ?o . ?o rdf:type ontology:historical_language }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q389688> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P37> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q2315359> } 
 select distinct ?obj where { wd:Q389688 wdt:P37 ?obj . ?obj wdt:P31 wd:Q2315359 } 
Old Persian Ancient Greek