Anchor: A large group of people dressed casually gather to dance.
Entailed: A group of people gather to dance.
Contradiction: A group of people are too sad to dance.
Contradiction: They go to the city on the weekends and rest during the week.
Contradiction: It's just a different way of saying it.
Contradiction: Some men are sitting, playing chess.
Contradiction: They shared a base with Englishmen on the island.