Anchor: Two men are singing and playing guitars outside a cement structure with spectators sitting on steps on their left.
Entailed: Two men are singing and playing guitars with spectators sitting on steps on their left.
Contradiction: A man plays guitar alone in his basement.
Contradiction: Nobody is singing.
Contradiction: Two men are on a train.
Contradiction: The spectators are sitting in chairs.
Contradiction: Two men are singing and playing guitars with giraffes sitting on steps on their left