context: Chances are slight that Greg is yellow. Chances are about even that Brian is green. There is a better than even chance that Daniel grabbed the milk.
hypothesis: It is highly unlikely that brian is green, and Greg is yellow.
valid_hypothesis: It is highly unlikely that brian is green, and Greg is yellow.
invalid_hypothesis: It is probably the case that brian is green, and Greg is yellow.
hypothesis_assertion: Brian is green, and Greg is yellow.