context: It is certain that Brian is gray. There is almost no chance that Mary went to the garden. Chances are about even that Sandra left the milk.
hypothesis: There is almost no chance that mary went to the garden, and Sandra left the milk.
valid_hypothesis: There is almost no chance that mary went to the garden, and Sandra left the milk.
invalid_hypothesis: It is probably the case that mary went to the garden, and Sandra left the milk.
hypothesis_assertion: Mary went to the garden, and Sandra left the milk.