context: It is probably the case that John picked up the milk. It is probably not the case that Brian is a rhino. There is a very good chance that Julius is a frog.
hypothesis: It is highly likely that brian is a rhino, or Julius is a frog.
valid_hypothesis: It is highly likely that brian is a rhino, or Julius is a frog.
invalid_hypothesis: We doubt that brian is a rhino, or Julius is a frog.
hypothesis_assertion: Brian is a rhino, or Julius is a frog.