Anchor: Three dogs round a bend at a racetrack.
Entailed: At the racetrack three dogs are rounding a bend.
Contradiction: Elephants are at the racetrack.
Contradiction: The men had no weapons or protection. 
Contradiction: Many of the patients approached still had alcohol in their systems.
Contradiction: As a Democrat, I'm a big supporter of President Clinton.
Contradiction: A man is at the rodeo.