context: A man is playing the saxophone in the street and some people are sitting on the curb next to the street by him.
hypothesis: There is a very good chance that a man is trying to earn money by playing for other people on the street.
valid_hypothesis: There is a very good chance that a man is trying to earn money by playing for other people on the street.
invalid_hypothesis: There is little chance that a man is trying to earn money by playing for other people on the street.
hypothesis_assertion: A man is trying to earn money by playing for other people on the street.