Anchor: For each US household can compute an estimate of its own-price and crossprice elasticities of demand and the expenditure elasticity of demand.
Entailed: Every us household can estimate its own price and crossprice of demand and expefenture elasticity on demand 
Contradiction: No household can estimate its own price 
Contradiction: The northerner refused to speak.
Contradiction: The black dog is getting wet.
Contradiction: The petitioners would like to prevent criticism of the welfare system.
Contradiction: I can explain auto-eroticism.