context: It is improbable that Greg is yellow. It is improbable that John went to the hallway. There is little chance that Brian is gray. It is unlikely that if either Brian is gray, or Greg is yellow, then Sandra grabbed the milk. It is highly unlikely that if Greg is yellow, and John went to the hallway, then Lily is a frog. It is probably the case that if John went to the hallway, or Brian is gray, then Bernhard is white.
hypothesis: There is a better than even chance that sandra grabbed the milk, or Lily is a frog.
valid_hypothesis: It is highly unlikely that sandra grabbed the milk, or Lily is a frog.
invalid_hypothesis: There is a better than even chance that sandra grabbed the milk, or Lily is a frog.
hypothesis_assertion: Sandra grabbed the milk, or Lily is a frog.