Anchor: A biker in blue rides just ahead a biker in white down a gravel path.
Entailed: Two bikers are traveling down a path.
Contradiction: The biker in white is leading the biker wearing blue.
Contradiction: People are swimming.
Contradiction: Both of mine are out of school.
Contradiction: The boy is on a boat.
Contradiction: The plan is to take a look in the evening.