Anchor: Tommy was behind him at the booking-office.
Entailed: Tommy was located at his rear at the booking office.  
Contradiction: Tommy stood in front of him at the booking office.  
Contradiction: The performer was juggling flaming chainsaws.
Contradiction: The Yankees decided not to waste time on him.
Contradiction: They are well off and have nothing to complain about.
Contradiction: It is only a few but it is still an improvement.