context: We believe that Lily is a rhino. We believe that Brian is yellow. There is little chance that Bill went to the garden.
hypothesis: It is probably the case that either Brian is yellow, or Bill went to the garden.
valid_hypothesis: It is probably the case that either Brian is yellow, or Bill went to the garden.
invalid_hypothesis: It is unlikely that either Brian is yellow, or Bill went to the garden.
hypothesis_assertion: Either Brian is yellow, or Bill went to the garden.