Anchor: He was obviously more intelligent than most, and better at conserving himself.
Entailed: He was clearly smarter than a lot of the others.
Contradiction: He was one of the least intelligent in the group.
Contradiction: a man is taking a photo of a shark while deep sea diving
Contradiction: Dog in the air.
Contradiction: There is no way to determine the reliability of a naturalistic study.
Contradiction: There's a person on a surf board.