Question: Which capitals in Europe were host cities of the summer olympic games?
SPARQL:
PREFIX yago: <http://dbpedia.org/clas/yago/>PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>SELECT DISTINCT ?uri WHERE { ?uri rdf:type yago:CapitalsInEurope . ?uri rdf:type yago:HostCitiesOfTheSumerOlympicGames .}