Anchor: A group of people are standing in front of some stores.
Entailed: There are people standing
Contradiction: There is a boy playing in the park
Contradiction: Rita and Boris had never spoken to each other and had no involvement with each other. 
Contradiction: The man is standing
Contradiction: A single person plays a flute outside.
Contradiction: The grand Hetel Lauzun was built by Le Vau.