context: We doubt that John dropped the apple. There is a very good chance that Mary went to the garden. It is probable that Brian is yellow.
hypothesis: Chances are about even that brian is yellow, or Mary went to the garden.
valid_hypothesis: It is almost certain that brian is yellow, or Mary went to the garden.
invalid_hypothesis: Chances are about even that brian is yellow, or Mary went to the garden.
hypothesis_assertion: Brian is yellow, or Mary went to the garden.