Anchor: A young boy in a desert is sitting on a donkey backwards.
Entailed: The young boy is in the desert with a donkey.
Contradiction: The boy is on a beach with a donkey.
Contradiction: We did not have any.  
Contradiction: The trees are bright.
Contradiction: You say that they're fair, but they lied to me.
Contradiction: Steve, I think that Joe Montana is the greatest quarterback of all time.