Anchor: He grimaced with the effort of it, thinking over and over again, "The youngsters were ignorant of your identity."  
Entailed: It was difficult enough to make him grimace.
Contradiction: He managed it easily.
Contradiction: A young woman is dancing
Contradiction: There are possible benefits towards critical infrastructure protection efforts.
Contradiction: I wish the baseball season would get canceled this year.
Contradiction: two people standing on side of street