context: There is little chance that Brian is a lion. It is unlikely that John went to the garden. Chances are about even that Jessica is a cat. It is impossible that if Jessica is a cat, and John went to the garden, then Fred discarded the milk. Chances are about even that if Jessica is a cat, and Brian is a lion, then Julius is a rhino. There is a better than even chance that if either Brian is a lion, or Jessica is a cat, then Bernhard is yellow.
hypothesis: It is highly unlikely that jessica is a cat, or John went to the garden.
valid_hypothesis: There is a better than even chance that jessica is a cat, or John went to the garden.
invalid_hypothesis: It is highly unlikely that jessica is a cat, or John went to the garden.
hypothesis_assertion: Jessica is a cat, or John went to the garden.