context: It is probably not the case that Greg is a swan. We doubt that Mary went to the hallway. It is almost certain that Antoine is hungry. It is probably not the case that if Greg is a swan, or Antoine is hungry, then Brian is a rhino. It is highly likely that if Mary went to the hallway, or Greg is a swan, then Daniel left the apple. There is a very good chance that if Greg is a swan, and Antoine is hungry, then John got the apple.
hypothesis: We doubt that mary went to the hallway, and Daniel left the apple.
valid_hypothesis: We doubt that mary went to the hallway, and Daniel left the apple.
invalid_hypothesis: It is probable that mary went to the hallway, and Daniel left the apple.
hypothesis_assertion: Mary went to the hallway, and Daniel left the apple.