context: There is little chance that Yann is thirsty. Chances are slight that Mary went to the hallway. It is improbable that Sandra grabbed the apple. It is probably not the case that if either Sandra grabbed the apple, or Yann is thirsty, then Brian is gray. It is highly likely that if Yann is thirsty, and Mary went to the hallway, then Greg is green. We doubt that if Mary went to the hallway, or Yann is thirsty, then Bernhard is a swan.
hypothesis: It is probably the case that either Yann is thirsty, or Sandra grabbed the apple.
valid_hypothesis: It is unlikely that either Yann is thirsty, or Sandra grabbed the apple.
invalid_hypothesis: It is probably the case that either Yann is thirsty, or Sandra grabbed the apple.
hypothesis_assertion: Either Yann is thirsty, or Sandra grabbed the apple.