Anchor: Seven students looking over a balcony.
Entailed: The students looked over a balcony.
Contradiction: Two students sat on the balcony.
Contradiction: I have two computers, and only one of them works, and no email account, and I use my only working computer for porn.
Contradiction: Better ways of dealing with emissions are predicted to arise over the next couple years.
Contradiction: Beetlejuice tries to escape sandworms.
Contradiction: A girl is sitting down.