context: Chances are slight that Greg is a frog. There is a very good chance that Julius is gray. It is likely that Lily is gray.
hypothesis: It is highly unlikely that lily is gray, and Greg is a frog.
valid_hypothesis: It is highly unlikely that lily is gray, and Greg is a frog.
invalid_hypothesis: It is likely that lily is gray, and Greg is a frog.
hypothesis_assertion: Lily is gray, and Greg is a frog.