Anchor: A crowd of people are clapping their hands at a concert and some are wearing blue wristbands.
Entailed: A crowd of people are at a concert.
Contradiction: Nobody at the concert is wearing a blue wristband.
Contradiction: A crowd wearing blue wristbands are singing at a concert.
Contradiction: A group of people are booing a band offstage
Contradiction: People at a boat show stand quietly.
Contradiction: An empty arena.