Anchor: Two men are rappelling a building in front of a large group of people.
Entailed: A crowd watches a two men.
Contradiction: A family eats lunch at KFC.
Contradiction: The volunteers are searching for the missing boy.
Contradiction: It is expensive to send unauthorized mail through the postal service. 
Contradiction: A bicyclist is swimming is a lake.
Contradiction: The man is near the pan.