context: It is probably not the case that Mary grabbed the milk. It is probable that Julius is green. Chances are about even that Brian is a frog.
hypothesis: It is impossible that either Brian is a frog, or Julius is green.
valid_hypothesis: Chances are about even that either Brian is a frog, or Julius is green.
invalid_hypothesis: It is impossible that either Brian is a frog, or Julius is green.
hypothesis_assertion: Either Brian is a frog, or Julius is green.