context: A young boy kissing an old man on the forehead.
hypothesis: It is improbable that the boy is kissing his grandpa on the forehead.
valid_hypothesis: It is highly likely that the boy is kissing his grandpa on the forehead.
invalid_hypothesis: It is improbable that the boy is kissing his grandpa on the forehead.
hypothesis_assertion: The boy is kissing his grandpa on the forehead.