context: Chances are about even that Julius is a rhino. It is probably the case that Greg is yellow. We doubt that Mary went to the garden. It is highly likely that if Mary went to the garden, and Julius is a rhino, then Julie is in the kitchen. There is a very good chance that if either Mary went to the garden, or Greg is yellow, then Gertrude is a wolf. It is highly likely that if either Mary went to the garden, or Greg is yellow, then Bernhard is white.
hypothesis: There is a very good chance that mary went to the garden, and Julius is a rhino.
valid_hypothesis: Chances are slight that mary went to the garden, and Julius is a rhino.
invalid_hypothesis: There is a very good chance that mary went to the garden, and Julius is a rhino.
hypothesis_assertion: Mary went to the garden, and Julius is a rhino.