Anchor: Did you see anything of what was written above her signature? asked Poirot sharply. 
Entailed: Poirot forcefully asked if you saw what was written over her signature.
Contradiction: Poirot ignored whatever he saw over her signature.
Contradiction: Students in the art room working with mixed mediums
Contradiction: If you have to have a car, then you have to buy one.
Contradiction: The girl watches TV in the hotel room.
Contradiction: When you dress up for a party, it changes your attitude.