context: Chances are about even that Jason is bored. We doubt that Brian is yellow. We believe that Mary dropped the milk.
hypothesis: It is probably the case that mary dropped the milk, and Brian is yellow.
valid_hypothesis: Chances are slight that mary dropped the milk, and Brian is yellow.
invalid_hypothesis: It is probably the case that mary dropped the milk, and Brian is yellow.
hypothesis_assertion: Mary dropped the milk, and Brian is yellow.