was the cuban missile crisis earlier than the bay of pigs invasion?
PREFIX dbo: <http://dbpedia.org/ontology/> PREFIX res: <http://dbpedia.org/resource/> ASK WHERE { res:Cuban_Missile_Crisis dbo:date ?x . res:Bay_of_Pigs_Invasion dbo:date ?y FILTER ( ?x < ?y ) }
Cuban_Missile_Crisis Bay_of_Pigs_Invasion