Anchor: Two young boys stand on either side of a man that is sitting in a chair.
Entailed: There are boys and a man together.
Contradiction: Two boys are sitting on a sofa.
Contradiction: A track athlete runs the 500m.
Contradiction: His voice died away as he thought of a possibility.
Contradiction: The Cairo Museum was built at the turn of the millennium.  
Contradiction: A dog running through grass.