context: There is almost no chance that Julius is a lion. Chances are about even that Greg is yellow. There is a very good chance that Brian is a frog.
hypothesis: Chances are about even that brian is a frog, and Greg is yellow.
valid_hypothesis: Chances are about even that brian is a frog, and Greg is yellow.
invalid_hypothesis: It is certain that brian is a frog, and Greg is yellow.
hypothesis_assertion: Brian is a frog, and Greg is yellow.