question: When did protesters run into the outfield and try to set fire to the U.S. flag ?
answer: April 25 , 1976
turker_answer: Protesters ran into the outfield and tried to set fire to the U.S. flag on April 25 , 1976 .
rule-based: Protesters ran into the outfield and tried to set fire to the U.S. flag in April 25 , 1976 .