Anchor: Only Billy has a reputation as a straight arrow.
Entailed: Billy was the only straight arrow.
Contradiction: Billy is one of many straight arrows.
Contradiction: Two men are standing staring in a fireplace.
Contradiction: The water sports at popular resorts are an exciting challenge for older kids.
Contradiction: Cynthia was not asked to help Mrs. Inglethorp in taking down notes. 
Contradiction: The people are on the bus.