context: It is probably the case that Lily is a rhino. We doubt that Mary went to the hallway. It is improbable that Greg is gray. We doubt that if Mary went to the hallway, and Lily is a rhino, then John picked up the milk. Chances are slight that if Greg is gray, and Lily is a rhino, then Julius is a frog. It is highly likely that if Greg is gray, or Lily is a rhino, then Sumit is tired.
hypothesis: There is a very good chance that mary went to the hallway, and Sumit is tired.
valid_hypothesis: Chances are slight that mary went to the hallway, and Sumit is tired.
invalid_hypothesis: There is a very good chance that mary went to the hallway, and Sumit is tired.
hypothesis_assertion: Mary went to the hallway, and Sumit is tired.