Anchor: A rodeo star rides a bucking bronco as the large crowd watches them.
Entailed: A Person is bucking a bronco in front of a crowd.
Contradiction: A person is mud wrestling.
Contradiction: The two dogs are swimming in the ocean.
Contradiction: I had to replace mine for that reason.
Contradiction: William Jennings Bryan is very civilized. 
Contradiction: They treat games of chance as games.