Anchor: A person surfs in the curl of a wave, obsured by the falling water.
Entailed: There is a person in this picture
Contradiction: He is sleeping in his bed
Contradiction: There are many other possible divisions even after finding a consistent division. 
Contradiction: Posner will give a number that is always right.
Contradiction: I came across the paper eight weeks later. 
Contradiction: Putin is Russia's leader.