context: We doubt that Brian is gray. It is impossible that Sandra dropped the milk. It is impossible that John moved to the office.
hypothesis: It is unlikely that either Sandra dropped the milk, or Brian is gray.
valid_hypothesis: It is unlikely that either Sandra dropped the milk, or Brian is gray.
invalid_hypothesis: We believe that either Sandra dropped the milk, or Brian is gray.
hypothesis_assertion: Either Sandra dropped the milk, or Brian is gray.