Anchor: And his hand tightened so on the reins that some fraction of his reaction must have reached Shiloh.
Entailed: Shiloh must have gotten some sense of his reaction. 
Contradiction: His tightening hand had no impact on Shiloh as they never felt his reaction. 
Contradiction: The people are swimming in the lake.
Contradiction: The fellow is up now after dozing at the back table earlier.
Contradiction: The museum does not have anything older than the 16th century.
Contradiction: Men are playing tennis.