context: It is highly likely that John left the milk. It is almost certain that Greg is a rhino. It is probable that Julius is a rhino.
hypothesis: It is certain that julius is a rhino, or Greg is a rhino.
valid_hypothesis: It is certain that julius is a rhino, or Greg is a rhino.
invalid_hypothesis: We doubt that julius is a rhino, or Greg is a rhino.
hypothesis_assertion: Julius is a rhino, or Greg is a rhino.