context: Chances are slight that John moved to the garden. There is little chance that Lily is a swan. It is highly unlikely that Greg is a rhino.
hypothesis: It is certain that either Lily is a swan, or Greg is a rhino.
valid_hypothesis: There is little chance that either Lily is a swan, or Greg is a rhino.
invalid_hypothesis: It is certain that either Lily is a swan, or Greg is a rhino.
hypothesis_assertion: Either Lily is a swan, or Greg is a rhino.