context: A woman on the sidewalk blocks the sun from her eyes to peer down the street.
hypothesis: It is improbable that a woman is attempting to recognize a friend she thinks is approaching.
valid_hypothesis: It is improbable that a woman is attempting to recognize a friend she thinks is approaching.
invalid_hypothesis: It is certain that a woman is attempting to recognize a friend she thinks is approaching.
hypothesis_assertion: A woman is attempting to recognize a friend she thinks is approaching.