Anchor: There are people sitting in a bus.
Entailed: There is a bus with passengers on board
Contradiction: There are people sitting on a plane waiting for takeoff
Contradiction: I will never forgive him!
Contradiction: I can't look for them because you're holding me back.
Contradiction: Jon was certain that his idea would be very popular. 
Contradiction: It's not hard to make money when you're the only game in town.