context: A dog with a collar on lying on the street.
hypothesis: Chances are slight that the dog was just hit by a car and is lying in the street.
valid_hypothesis: Chances are slight that the dog was just hit by a car and is lying in the street.
invalid_hypothesis: There is a better than even chance that the dog was just hit by a car and is lying in the street.
hypothesis_assertion: The dog was just hit by a car and is lying in the street.