context: We doubt that John got the football. We believe that Greg is yellow. It is highly unlikely that Mary went to the bedroom.
hypothesis: There is a very good chance that either John got the football, or Mary went to the bedroom.
valid_hypothesis: It is probably not the case that either John got the football, or Mary went to the bedroom.
invalid_hypothesis: There is a very good chance that either John got the football, or Mary went to the bedroom.
hypothesis_assertion: Either John got the football, or Mary went to the bedroom.