context: A person dressed in white and black winter clothing leaps a narrow, water-filled ditch from one frost-covered field to another, where a female dressed in black coat and pants awaits.
hypothesis: It is probably the case that the female awaiting the man leaping is his sister.
valid_hypothesis: Chances are slight that the female awaiting the man leaping is his sister.
invalid_hypothesis: It is probably the case that the female awaiting the man leaping is his sister.
hypothesis_assertion: The female awaiting the man leaping is his sister.