Anchor: But you can't at once, cried Tuppence.
Entailed: "You cannot at once", said Tuppence.
Contradiction: "You could do it right now", says Tuppence. 
Contradiction: The dog is running through the sandy beach.
Contradiction: a person gets surrounded by a group
Contradiction: An adult taking a picture of a tree.
Contradiction: That's the problem that I believe we have.