context: It is highly likely that Mary went to the garden. It is unlikely that Gertrude is a cat. Chances are about even that Lily is a frog.
hypothesis: It is almost certain that mary went to the garden, and Lily is a frog.
valid_hypothesis: Chances are about even that mary went to the garden, and Lily is a frog.
invalid_hypothesis: It is almost certain that mary went to the garden, and Lily is a frog.
hypothesis_assertion: Mary went to the garden, and Lily is a frog.