Question: Which team has had both Martin prochzka and garry unger as its players ?
SPARQL:
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Martin_Procházka> <http://dbpedia.org/ontology/formerTeam> ?uri. <http://dbpedia.org/resource/Garry_Unger> <http://dbpedia.org/ontology/formerTeam> ?uri . }