context: It is almost certain that Brian is a frog. It is probably the case that Sandra got the football. It is likely that John went to the office.
hypothesis: We believe that either Sandra got the football, or Brian is a frog.
valid_hypothesis: It is probably not the case that either Sandra got the football, or Brian is a frog.
invalid_hypothesis: We believe that either Sandra got the football, or Brian is a frog.
hypothesis_assertion: Either Sandra got the football, or Brian is a frog.