context: A boy kneeling on a skateboard riding down the street
hypothesis: It is likely that a boy on a skateboard riding down the street his house is on.
valid_hypothesis: It is likely that a boy on a skateboard riding down the street his house is on.
invalid_hypothesis: It is impossible that a boy on a skateboard riding down the street his house is on.
hypothesis_assertion: A boy on a skateboard riding down the street his house is on.