context: It is probably the case that John went to the garden. It is impossible that Greg is a rhino. It is probably not the case that Mary discarded the milk. There is little chance that if Mary discarded the milk, or Greg is a rhino, then Julius is green. There is little chance that if Greg is a rhino, or Mary discarded the milk, then Gertrude is a mouse. There is little chance that if Mary discarded the milk, and John went to the garden, then Brian is gray.
hypothesis: It is likely that either Julius is green, or Greg is a rhino.
valid_hypothesis: There is almost no chance that either Julius is green, or Greg is a rhino.
invalid_hypothesis: It is likely that either Julius is green, or Greg is a rhino.
hypothesis_assertion: Either Julius is green, or Greg is a rhino.