context: A little boy with a blue bike helmet and a woman in a green bike helmet are riding bikes down a street with other various bike riders.
hypothesis: It is highly likely that a mother and her son ride bikes with others down a street.
valid_hypothesis: It is highly likely that a mother and her son ride bikes with others down a street.
invalid_hypothesis: It is impossible that a mother and her son ride bikes with others down a street.
hypothesis_assertion: A mother and her son ride bikes with others down a street.