query: SELECT College FROM match_season WHERE POSITION  =  "Midfielder" INTERSECT SELECT College FROM match_season WHERE POSITION  =  "Defender"
question: Are Returning colleges that which have players who is playing Midfielder position, as well as players who is playing Defender position.
query_toks: SELECT College FROM match_season WHERE POSITION = `` Midfielder '' INTERSECT SELECT College FROM match_season WHERE POSITION = `` Defender ''
query_toks_no_value: select college from match_season where position = value intersect select college from match_season where position = value
question_toks: Are Returning colleges that which have players who is playing Midfielder position, as well as players who is playing Defender position.