context: Chances are about even that Winona is a wolf. It is highly likely that Julius is green. It is unlikely that Brian is a swan.
hypothesis: It is unlikely that brian is a swan, and Julius is green.
valid_hypothesis: It is unlikely that brian is a swan, and Julius is green.
invalid_hypothesis: It is likely that brian is a swan, and Julius is green.
hypothesis_assertion: Brian is a swan, and Julius is green.