context: A child turning a crank with benches behind him.
hypothesis: It is highly unlikely that the child is playing with a jack-in-the-box in the park.
valid_hypothesis: It is highly unlikely that the child is playing with a jack-in-the-box in the park.
invalid_hypothesis: It is probable that the child is playing with a jack-in-the-box in the park.
hypothesis_assertion: The child is playing with a jack-in-the-box in the park.