question: What was one of the agencies that downgraded a significant number of IndyMac 's MBS bonds in April 2008 ?
answer: Moody 's
turker_answer: One of the agencies that downgraded a significant number of IndyMac 's MBS bonds in April 2008 was Moody 's .
rule-based: One of the agencies that downgraded a significant number of IndyMac 's MBS bonds in April 2008 was Moody 's .