Anchor: No one who is a friend, enemy, colleague, or rival of the author is supposed to get an assignment.
Entailed: None of the author's companions should get an assignment.
Contradiction: All of the author's companions should get an assignment.
Contradiction: Voices stayed silent. 
Contradiction: people's are moving in staircase
Contradiction: The movie did not feature any underaged actors.
Contradiction: I do admit it's alluring.