Anchor: It differs from an evaluation synthesis in that special techniques are required to aggregate the qualitative information that often is a feature of case studies and to maintain the sense of the instance as a whole in its complexity that distinguishes case studies from surveys of several sites.
Entailed: You have to use special techniques to aggregate the qualitative information in case studies.
Contradiction: You have to use special techniques to aggregate the quantitative information in case studies.
Contradiction: The man is putting sticks into a wheel barrow.
Contradiction: There are places to camp along the beaches year-round.
Contradiction: A dog licks himself.
Contradiction: Girls on a statue.