question: On which date did FIFA request that all European leagues reduce the number of teams within themselves to 18 ?
answer: 8 June 2006
turker_answer: FIFA requested that all European leagues reduce the number of teams within themselves to 18 on 8 June 2006 .
rule-based: FIFA request that all European leagues reduce the number of teams within themselves to 18 on 8 June 2006 .