context: There is almost no chance that Brian is green. It is probably the case that Lily is a frog. We believe that John got the football.
hypothesis: It is highly unlikely that lily is a frog, and John got the football.
valid_hypothesis: Chances are about even that lily is a frog, and John got the football.
invalid_hypothesis: It is highly unlikely that lily is a frog, and John got the football.
hypothesis_assertion: Lily is a frog, and John got the football.