context: It is certain that Greg is gray. It is probably the case that Julius is a rhino. It is highly likely that Brian is white. We believe that if either Julius is a rhino, or Greg is gray, then Winona is a mouse. There is almost no chance that if Brian is white, and Julius is a rhino, then John went to the hallway. It is impossible that if Julius is a rhino, or Brian is white, then Sandra took the milk.
hypothesis: It is certain that julius is a rhino, or Greg is gray.
valid_hypothesis: It is certain that julius is a rhino, or Greg is gray.
invalid_hypothesis: It is unlikely that julius is a rhino, or Greg is gray.
hypothesis_assertion: Julius is a rhino, or Greg is gray.