context: There is almost no chance that Greg is a lion. There is a very good chance that Mary is in the hallway. We doubt that Lily is a frog.
hypothesis: It is probable that lily is a frog, and Greg is a lion.
valid_hypothesis: It is impossible that lily is a frog, and Greg is a lion.
invalid_hypothesis: It is probable that lily is a frog, and Greg is a lion.
hypothesis_assertion: Lily is a frog, and Greg is a lion.