Anchor: Fine, say the dairy doubters, if calcium is the answer, then it should both prevent and cure osteoporosis, but it doesn't.
Entailed: Calcium does not prevent and cure osteoporosis.
Contradiction: People don't doubt the dairy solution.
Contradiction: That's the way the Apache get married. 
Contradiction: How has the use of the postal service changed among the US population in the last 10 years?
Contradiction: It's always easy to criticize a country regardless of bumpers. 
Contradiction: State agencies are required to set a limit on dependent care reimbursement.