Anchor: A black and white dog is jumping over a fence in an obstacle course.
Entailed: A black and white dog is jumping a fence in an obstacle course
Contradiction: A black and white dog runs into a fence in an obstacle course
Contradiction: THe pit was lined with smooth dirt.
Contradiction: Their children pay most of the costs, while strangers enjoy many of the benefits. 
Contradiction: The children are swimming and playing in the lake.
Contradiction: a man is taking a picture of two women while someone else watches.