context: It is probably not the case that Mary went to the garden. We doubt that Lily is yellow. It is impossible that John dropped the milk.
hypothesis: There is a very good chance that john dropped the milk, or Mary went to the garden.
valid_hypothesis: It is probably not the case that john dropped the milk, or Mary went to the garden.
invalid_hypothesis: There is a very good chance that john dropped the milk, or Mary went to the garden.
hypothesis_assertion: John dropped the milk, or Mary went to the garden.