Anchor: OPPORTUNITY COST - The value of the alternatives foregone by adopting a particular strategy or employing resources in a specific manner.
Entailed: Opportunity cost is the amount of alternatives not ventured by using a certain strategy or resources. 
Contradiction: Mis-opportunity cost is the amount of alternatives not ventured by using a certain strategy or resource/
Contradiction: Folk singer addressing crowd of protesters.
Contradiction: The night was hot.
Contradiction: The flat-roofed abbey was located 500 miles from the Channel islands of Chausey.
Contradiction: A boy is skateboarding on a railing.