Some of the school's professors are football fans, and members of the school budget committee have unanimously requested that the school's football stadium be converted into an office building, and all football fans strongly oppose this. From this? ['Not all members of the school budget committee are school professors.', 'All school professors are members of the school budget committee.', 'Some professors in the school are not members of the school budget committee.', 'Some members of the school budget committee are football fans.']