Anchor: Since the author has not been able to figure out how much the postal service charges itself for delivery, this notion, while sounding meritorious and politically correct, will not be mentioned again.
Entailed: The postal service charges customers for delivery.
Contradiction: The postal service delivers mail for free.
Contradiction: Keynes thought that making guesses of any kind would help move things along.
Contradiction: The building is not new.
Contradiction: A man is sleeping.
Contradiction: An animal is swimming while another animal looks on.