Anchor: Case studies, obviously, can generate a great deal of evidence.
Entailed: Case studies can provide a lot of evidence. 
Contradiction: Case studies aren't helpful in finding evidence.
Contradiction: A dog is working the crane
Contradiction: A boy runs.
Contradiction: MLS made U.S players very ungrateful for their circumstances.
Contradiction: The gun control fanatics are preaching about how they should have stronger laws.