context: There is a very good chance that Mary dropped the milk. It is highly likely that Brian is gray. It is highly likely that Greg is white. There is a very good chance that if Greg is white, or Mary dropped the milk, then Daniel left the milk. Chances are slight that if Brian is gray, and Mary dropped the milk, then Fred went to the kitchen. There is little chance that if Mary dropped the milk, or Brian is gray, then Julius is green.
hypothesis: There is a very good chance that either Fred went to the kitchen, or Brian is gray.
valid_hypothesis: There is a very good chance that either Fred went to the kitchen, or Brian is gray.
invalid_hypothesis: It is highly unlikely that either Fred went to the kitchen, or Brian is gray.
hypothesis_assertion: Either Fred went to the kitchen, or Brian is gray.