context: There is little chance that Julius is a rhino. It is likely that John went to the office. It is likely that Greg is a lion.
hypothesis: Chances are about even that either John went to the office, or Greg is a lion.
valid_hypothesis: Chances are about even that either John went to the office, or Greg is a lion.
invalid_hypothesis: It is highly unlikely that either John went to the office, or Greg is a lion.
hypothesis_assertion: Either John went to the office, or Greg is a lion.