Anchor: A band is playing music in a park.
Entailed: A band is performing in a park.
Contradiction: A band is performing in a theatre.
Contradiction: Why did Steve Chapman say the oil shocks of the 1970s would never come back?
Contradiction: a group of men are near bikes.
Contradiction: The shapes of the two surfaces are competely different.
Contradiction: There is a wall and it has a picture on it.