context: It is probably the case that Daniel left the football. We doubt that John went to the hallway. It is probable that Fred moved to the office. It is highly likely that if either Fred moved to the office, or Daniel left the football, then Lily is green. It is highly unlikely that if either Fred moved to the office, or Daniel left the football, then Julius is white. Chances are slight that if Fred moved to the office, and Daniel left the football, then Greg is a swan.
hypothesis: It is probable that daniel left the football, or Julius is white.
valid_hypothesis: It is probable that daniel left the football, or Julius is white.
invalid_hypothesis: It is highly unlikely that daniel left the football, or Julius is white.
hypothesis_assertion: Daniel left the football, or Julius is white.