context: It is probably not the case that Greg is a frog. There is a very good chance that Antoine is hungry. There is little chance that Sandra grabbed the apple. It is likely that if Greg is a frog, or Sandra grabbed the apple, then Lily is yellow. It is almost certain that if Antoine is hungry, or Greg is a frog, then Brian is a rhino. Chances are about even that if either Sandra grabbed the apple, or Antoine is hungry, then John picked up the milk.
hypothesis: It is highly unlikely that sandra grabbed the apple, and Lily is yellow.
valid_hypothesis: It is highly unlikely that sandra grabbed the apple, and Lily is yellow.
invalid_hypothesis: There is a better than even chance that sandra grabbed the apple, and Lily is yellow.
hypothesis_assertion: Sandra grabbed the apple, and Lily is yellow.