context: It is probably the case that Julius is a frog. It is probable that John went to the kitchen. It is probably not the case that Brian is gray.
hypothesis: It is unlikely that brian is gray, and Julius is a frog.
valid_hypothesis: It is unlikely that brian is gray, and Julius is a frog.
invalid_hypothesis: It is likely that brian is gray, and Julius is a frog.
hypothesis_assertion: Brian is gray, and Julius is a frog.