context: We doubt that Lily is a swan. It is impossible that Greg is green. It is unlikely that John grabbed the apple.
hypothesis: It is probably the case that lily is a swan, or Greg is green.
valid_hypothesis: We doubt that lily is a swan, or Greg is green.
invalid_hypothesis: It is probably the case that lily is a swan, or Greg is green.
hypothesis_assertion: Lily is a swan, or Greg is green.