context: Chances are slight that Fred is in the kitchen. It is unlikely that Brian is a lion. It is almost certain that Winona is a mouse. It is probably not the case that if Fred is in the kitchen, and Winona is a mouse, then Daniel dropped the apple. It is certain that if either Fred is in the kitchen, or Brian is a lion, then Greg is gray. There is a very good chance that if Brian is a lion, or Fred is in the kitchen, then Lily is yellow.
hypothesis: It is highly likely that either Daniel dropped the apple, or Fred is in the kitchen.
valid_hypothesis: There is little chance that either Daniel dropped the apple, or Fred is in the kitchen.
invalid_hypothesis: It is highly likely that either Daniel dropped the apple, or Fred is in the kitchen.
hypothesis_assertion: Either Daniel dropped the apple, or Fred is in the kitchen.