context: A boy wearing a shirt with an American flag plays with a basketball on the blacktop.
hypothesis: There is a very good chance that a boy is practicing his basketball shooting skills for his school's game later.
valid_hypothesis: It is highly unlikely that a boy is practicing his basketball shooting skills for his school's game later.
invalid_hypothesis: There is a very good chance that a boy is practicing his basketball shooting skills for his school's game later.
hypothesis_assertion: A boy is practicing his basketball shooting skills for his school's game later.