context: It is probably not the case that John grabbed the apple. We doubt that Brian is a frog. It is likely that Mary got the football.
hypothesis: There is a very good chance that john grabbed the apple, or Mary got the football.
valid_hypothesis: There is a very good chance that john grabbed the apple, or Mary got the football.
invalid_hypothesis: It is unlikely that john grabbed the apple, or Mary got the football.
hypothesis_assertion: John grabbed the apple, or Mary got the football.