context: It is certain that Lily is yellow. It is almost certain that Bill went to the garden. There is a very good chance that Brian is a frog.
hypothesis: It is almost certain that bill went to the garden, and Lily is yellow.
valid_hypothesis: It is almost certain that bill went to the garden, and Lily is yellow.
invalid_hypothesis: It is improbable that bill went to the garden, and Lily is yellow.
hypothesis_assertion: Bill went to the garden, and Lily is yellow.