Anchor: A beautiful city river walk with boats docked right on it.
Entailed: A city surrounds a river.
Contradiction: Boats sit in dry dock in an urban warehouse.
Contradiction: The books come in French, Arabic, German, and Russian but not English. 
Contradiction: Men are wearing yellow jackets.
Contradiction: the dogs are swimming in the lake
Contradiction: I took guitar lessons and piano lessons during part of high school.