Anchor: Two girls are standing outside.
Entailed: Two people stand around outdoors.
Contradiction: Two girls are sitting on the bench.
Contradiction: There is nothing to see at the top of the climb.
Contradiction: Testing the security of agency property is one of the operations OSI engages in.
Contradiction: Informational material seems to have a significant impact on physician behavior. 
Contradiction: One can easily list down the really bad things done by governments.