Anchor: With no other information (for the purpose of this exercise), if fewer than 14 case studies were to be made, selecting states typical in size such as Maryland, Michigan, New Jersey, and Indiana would make sense.
Entailed: This exercise has no other information. 
Contradiction: Fewer than 150 case studies were to be made. 
Contradiction: They definitely don't have camp sites.
Contradiction: A man is outside and holding a rope.
Contradiction: The white man is playing with his dog.
Contradiction: Three people backpack together.