Anchor: Yes, he continued, staring at me thoughtfully, "you will be invaluable." This was naturally gratifying, but Poirot's next words were not so welcome. 
Entailed: Poirot told me I would be invaluable to the investigation, but in the next breath seemed to disavow my usefulness.
Contradiction: Poirot dismissed my usefulness out of hand and said there was no need for me to be there.
Contradiction: The windows are unprotected from the balls.
Contradiction: A three-man team scores each time the ball hits the ground on the other side of the court.
Contradiction: I'm male, but I alway get confused with Charles Bronson.
Contradiction: A man wearing a woolen hat plays acoustic guitar while lying against a pillow.