context: It is probably the case that Greg is gray. It is highly unlikely that Daniel took the football. It is certain that Julius is a swan.
hypothesis: It is highly unlikely that julius is a swan, and Daniel took the football.
valid_hypothesis: It is highly unlikely that julius is a swan, and Daniel took the football.
invalid_hypothesis: It is probable that julius is a swan, and Daniel took the football.
hypothesis_assertion: Julius is a swan, and Daniel took the football.