question: Who was the former director of the CFTC that testified before the Senate Committee on Commerce , Science , and Transportation on June 3 , 2008 ?
answer: Michael Greenberger
turker_answer: Michael Greenberger was the former director of the CFTC that testified before the Senate Committee on Commerce , Science , and Transportation on June 3 , 2008 .
rule-based: Michael Greenberger was the former director of the CFTC that testified before the Senate Committee on Commerce , Science , and Transportation on June 3 , 2008 .