Question: What countries are within the European Union?
Paraphrase: What nations are inside the European Union?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q458 wdt:P150 ?obj . ?obj wdt:P31 wd:Q6256 } 
Answer: Ireland, Hungary, Sweden, Denmark, Finland, Italy, Poland, Austria, Greece, Portugal, Netherlands, France, Germany, Latvia, Slovakia, Czech Republic, Romania, Bulgaria, Croatia, Cyprus, Malta