Anchor: Both utilize the contingent valuation method.
Entailed: Both use a method called the contingent valuation method.
Contradiction: The contingent valuation method can be used.
Contradiction: My cats never get angry with me. 
Contradiction: Americans try to make good in the implications of international community.  
Contradiction: Two women are jogging past a store.
Contradiction: The Obelisk of Luxor from the temple of Ramses II has a newly gilded pyramidal tip.