Anchor: A choir is standing up on a podium singing a song.
Entailed: A choir are singing.
Contradiction: A choir are in the aisle singing a song.
Contradiction: A lady is a white dress is reading her email.
Contradiction: The right transept of the chapel is where Botticelli is buried.
Contradiction: Everyone is laying down taking a nap.
Contradiction: A man has a bucket.