context: A young boy and an adult man looking at ducks in a pond.
hypothesis: Chances are slight that the man and his son stand at the edge of a pond.
valid_hypothesis: We believe that the man and his son stand at the edge of a pond.
invalid_hypothesis: Chances are slight that the man and his son stand at the edge of a pond.
hypothesis_assertion: The man and his son stand at the edge of a pond.