context: There is almost no chance that Lily is a frog. Chances are about even that Mary went to the kitchen. We doubt that Fred dropped the apple.
hypothesis: It is highly likely that mary went to the kitchen, and Fred dropped the apple.
valid_hypothesis: There is little chance that mary went to the kitchen, and Fred dropped the apple.
invalid_hypothesis: It is highly likely that mary went to the kitchen, and Fred dropped the apple.
hypothesis_assertion: Mary went to the kitchen, and Fred dropped the apple.