Anchor: Case studies can determine the effects of programs and reasons for success (or failures).
Entailed: Case studies can show the effects of programs and reasons for succeeding.
Contradiction: Case studies provide no answers about the impact of a program succeeding of failing.
Contradiction: It would not be worth it no matter what our supply status is.  
Contradiction: Advancement in technology, methodology and ecological quality comes down to human action.
Contradiction: Elvis is driving the Cadillac.
Contradiction: A man is cleaning.