Anchor: A boy riding a bicycle while another boy and girl watch.
Entailed: A boy and girl watch a boy ride a bicycle
Contradiction: A bunch of people jumping watching a race
Contradiction: CCLS provides legal services to Mexican-Americans in Los Angeles.
Contradiction: We don't plan things just because we like to do so.
Contradiction: The little girl is eating at a restaurant.
Contradiction: For a description of prototyping and the spiral model, see Roger S. Pressman, Software A Practitioner's Approach, 3rd ed.