Anchor: The two man are getting something over the tree.
Entailed: a couple of guys near a tree
Contradiction: two women near a cherry tree
Contradiction: There's a wall which we can use as a natural choke point.
Contradiction: A show that can be predicted isn't worth watching.
Contradiction: The civilization came to an end in 1900 b.c. 
Contradiction: An animal outside in the cold