Anchor: A group of people walking on a trail.
Entailed: Several people are outside, walking on a trail.
Contradiction: Some people are sitting on a bench.
Contradiction: A basketball player is making a free-throw.
Contradiction: The woman wears yeloow
Contradiction: If we assume no change would center around this one subclass may not be a good one.
Contradiction: A man is sitting on a bench with his eyes closed near a pond.