Anchor: Lynyrd Skynyrd is performing at a concert.
Entailed: A band is playing music.
Contradiction: The men are playing classical music.
Contradiction: The drum kit cymbals are back stage.
Contradiction: I took a ride on one of those things once, but never again!
Contradiction: Two children are eating a sandwich.
Contradiction: There is a question regarding evolution's divergence or convergence.