context: There is a better than even chance that John dropped the milk. It is unlikely that Mary went to the garden. It is certain that Greg is a frog.
hypothesis: It is unlikely that mary went to the garden, and Greg is a frog.
valid_hypothesis: It is unlikely that mary went to the garden, and Greg is a frog.
invalid_hypothesis: There is a very good chance that mary went to the garden, and Greg is a frog.
hypothesis_assertion: Mary went to the garden, and Greg is a frog.