Anchor: The railroad needed a way station, and Las Vegas was the place.
Entailed: Las vegas seemed to be the best place to put a way station.
Contradiction: Las vegas did not seem like a good place to put a way station. 
Contradiction: A man wears a white shirt while sweeping.
Contradiction: Three men are sitting together.
Contradiction: Troyes is all factories.
Contradiction: people standing with umbrellas and raincoat near a fountain on a rainy day