Anchor: A group of children sit against a fence, covered with a blanket.
Entailed: More than one child is sitting against a fence.
Contradiction: A group of children are playing tag.
Contradiction: A man and his friends are attending a concert.
Contradiction: These books are to help find original statements.
Contradiction: The requirement takes up an average of 100 hours per year to be fulfilled by a typical manufacturer.
Contradiction: It's possible to see the caves from the road, but it's easy to overlook them unless you know where they are.