Anchor: He has been serving as Vice Chair of the Board since 1997.
Entailed: He became the Board's Vice Chair in 1997.
Contradiction: He was dismissed as the Board's Vice Chair after less than a year in the position. 
Contradiction: Workers walk throughout the living room.
Contradiction: She heard them talking.
Contradiction: They were praying that the candidate would drop the issue.
Contradiction: A man is playing in the sand.