context: A young boy in a green shirt and blue pants is playing with a blue toy train on a wooden track.
hypothesis: There is a better than even chance that a young boy is pretending he is a train engineer.
valid_hypothesis: There is a better than even chance that a young boy is pretending he is a train engineer.
invalid_hypothesis: Chances are slight that a young boy is pretending he is a train engineer.
hypothesis_assertion: A young boy is pretending he is a train engineer.