context: There is little chance that Sandra grabbed the apple. Chances are about even that Brian is a frog. It is probably not the case that Mary discarded the milk.
hypothesis: There is almost no chance that sandra grabbed the apple, and Mary discarded the milk.
valid_hypothesis: There is almost no chance that sandra grabbed the apple, and Mary discarded the milk.
invalid_hypothesis: It is probably the case that sandra grabbed the apple, and Mary discarded the milk.
hypothesis_assertion: Sandra grabbed the apple, and Mary discarded the milk.