Anchor: A bull tries bucking off his latest rodeo contestant.
Entailed: A person is riding a bull.
Contradiction: A man is riding an amusement park ride.
Contradiction: Riding the Steamers is great regardless of the weather conditions. 
Contradiction: General Bedford Forrest knew Drew.
Contradiction: He's in his bed sleeping.
Contradiction: The success of finance related improvement initiates depends on the CEO.