Anchor: Membership imposes an obligation to maintain standards of both quality and service, and provides dissatisfied customers with an officially recognized channel for redressing complaints; the number to call is Tel. 2508 1234.
Entailed: Unhappy customers have an official channel for making complaints.
Contradiction: Members do not need to maintain standards of quality or service.
Contradiction: A puppy is running down the hall to the room.
Contradiction: A man is getting his hair cut in an open area.
Contradiction: Bradley never ran a campaign for president.
Contradiction: There is a dog.