context: There is little chance that John dropped the milk. There is almost no chance that Lily is a frog. We believe that Mary discarded the milk.
hypothesis: It is impossible that mary discarded the milk, or John dropped the milk.
valid_hypothesis: We believe that mary discarded the milk, or John dropped the milk.
invalid_hypothesis: It is impossible that mary discarded the milk, or John dropped the milk.
hypothesis_assertion: Mary discarded the milk, or John dropped the milk.