Anchor: A couple of officers on a scene.
Entailed: A couple of officers on a scene.
Contradiction: One officer on a scene.
Contradiction: Nagasaki became a center for xenophobia where Western trade was outlawed.
Contradiction: GAO will provide a lot of necessary information.
Contradiction: She did not look my way when she went through the doorway.  
Contradiction: There is no way to get in to see the least interesting part of an old system of fortifications.