context: We believe that John went to the garden. Chances are about even that Lily is yellow. It is highly likely that Brian is green.
hypothesis: Chances are about even that either Lily is yellow, or Brian is green.
valid_hypothesis: Chances are about even that either Lily is yellow, or Brian is green.
invalid_hypothesis: It is impossible that either Lily is yellow, or Brian is green.
hypothesis_assertion: Either Lily is yellow, or Brian is green.