context: It is improbable that Brian is a rhino. There is little chance that Greg is a swan. It is probable that Fred discarded the milk.
hypothesis: There is almost no chance that fred discarded the milk, or Brian is a rhino.
valid_hypothesis: We believe that fred discarded the milk, or Brian is a rhino.
invalid_hypothesis: There is almost no chance that fred discarded the milk, or Brian is a rhino.
hypothesis_assertion: Fred discarded the milk, or Brian is a rhino.