Anchor: case study is to obtain as complete a picture as possible of what is going on in an instance, and why.
Entailed: A complete picture is needed to see what is going on in the instance.
Contradiction: A complete picture is not needed to see what is going on in the instance.
Contradiction: The people are all sleeping in the hotel
Contradiction: The dogs are swimming.
Contradiction: Presently, no one has any issues with busing.
Contradiction: Three men are working on a bicycle.