Anchor: i would say it's closer to sea level
Entailed: My opinion is that it's nearer to the surface of the sea. 
Contradiction: I think it is nowhere near sea level. 
Contradiction: The route to our destination is lined by mountains, cliffs, and farmland.
Contradiction: The people have a unique heritage.
Contradiction: A block that grants a tax break isn't even a question, it should not be considered.
Contradiction: Dogs are out in the snow