context: There is little chance that Lily is a frog. It is highly unlikely that Brian is yellow. We believe that Greg is a swan.
hypothesis: It is improbable that brian is yellow, or Greg is a swan.
valid_hypothesis: We believe that brian is yellow, or Greg is a swan.
invalid_hypothesis: It is improbable that brian is yellow, or Greg is a swan.
hypothesis_assertion: Brian is yellow, or Greg is a swan.