Anchor: Or suppose Greenspan did not respond quickly enough and that the economy did indeed fall into a slump.
Entailed: It is possible that, if Greenspan did not respond soon enough, the economy would be negatively effected.  
Contradiction: It is not possible for Greenspan to react to a slumping economy. 
Contradiction: He was lying and it made him nervous.
Contradiction: She responds to patients who request help.
Contradiction: The squirrel is being chased by the big cat.
Contradiction: The people are doing a African dance.