Question: Which is the capital for the official residence of the Parthian Empire?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q1986139 wdt:P263 ?obj . ?obj wdt:P31 wd:Q5119 } 
Answer: Susa, Ctesiphon, Ecbatana, Nisa, Hecatompylos, Asaak