context: There is a better than even chance that Lily is a frog. We believe that Brian is a lion. It is highly unlikely that Fred went to the office.
hypothesis: We believe that fred went to the office, or Brian is a lion.
valid_hypothesis: We believe that fred went to the office, or Brian is a lion.
invalid_hypothesis: It is probably not the case that fred went to the office, or Brian is a lion.
hypothesis_assertion: Fred went to the office, or Brian is a lion.