Anchor: You can tell the difference by wetting a corner of a white handkerchief and rubbing the carpet.
Entailed: If you moisten a white handkerchief and rub the carpet, you should be able to spot the difference. 
Contradiction: Rubbing at the carpet with a handkerchief won't enable you to tell the difference. 
Contradiction: A man walks to the store.
Contradiction: A human running
Contradiction: The three lacrosee players talk after the game.
Contradiction: Kids are near an elephant