context: It is likely that Lily is yellow. There is almost no chance that Brian is green. It is impossible that Mary went to the hallway.
hypothesis: It is impossible that mary went to the hallway, and Lily is yellow.
valid_hypothesis: It is impossible that mary went to the hallway, and Lily is yellow.
invalid_hypothesis: It is likely that mary went to the hallway, and Lily is yellow.
hypothesis_assertion: Mary went to the hallway, and Lily is yellow.