context: It is impossible that Julius is green. It is almost certain that Mary went to the office. It is highly likely that Fred left the football. We doubt that if Mary went to the office, and Fred left the football, then Bernhard is a lion. It is highly likely that if Mary went to the office, and Fred left the football, then Brian is gray. It is probably not the case that if Mary went to the office, or Fred left the football, then John moved to the garden.
hypothesis: It is unlikely that fred left the football, and Mary went to the office.
valid_hypothesis: It is highly likely that fred left the football, and Mary went to the office.
invalid_hypothesis: It is unlikely that fred left the football, and Mary went to the office.
hypothesis_assertion: Fred left the football, and Mary went to the office.