context: It is probable that Julius is a frog. It is probably not the case that Greg is a rhino. It is probably not the case that John went to the hallway. It is probably the case that if John went to the hallway, and Greg is a rhino, then Bernhard is gray. There is a very good chance that if either Greg is a rhino, or John went to the hallway, then Mary moved to the garden. It is highly likely that if Julius is a frog, or John went to the hallway, then Sandra got the apple.
hypothesis: There is almost no chance that either Greg is a rhino, or Julius is a frog.
valid_hypothesis: There is a better than even chance that either Greg is a rhino, or Julius is a frog.
invalid_hypothesis: There is almost no chance that either Greg is a rhino, or Julius is a frog.
hypothesis_assertion: Either Greg is a rhino, or Julius is a frog.