Question: Of all the teams that Andrew Economos played for, which one did Jerrel Jackson play his first game for?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Jerrell_Jackson> <http://dbpedia.org/ontology/debutTeam> ?uri. <http://dbpedia.org/resource/Andrew_Economos> <http://dbpedia.org/ontology/formerTeam> ?uri}