context: It is likely that Greg is a swan. It is probably not the case that Brian is a frog. Chances are slight that Daniel grabbed the milk.
hypothesis: It is probable that greg is a swan, and Daniel grabbed the milk.
valid_hypothesis: It is highly unlikely that greg is a swan, and Daniel grabbed the milk.
invalid_hypothesis: It is probable that greg is a swan, and Daniel grabbed the milk.
hypothesis_assertion: Greg is a swan, and Daniel grabbed the milk.