Anchor: A man in a gray tank top givers red roses to a woman in a white sundress.
Entailed: A man with a shirt on is giving flowers to a woman
Contradiction: A woman is hitting a man.
Contradiction: A woman is standing in line at an amusement park.
Contradiction: The item would greatly benefit the blind with their independence.
Contradiction: A man is riding a bicycle.
Contradiction: I agree that you need a fixed and clear sentence.