Text: In the 18th-century Baroque church, you may hear the nuns praying or singing, but you'll never see them; they are cloistered on the other side of the grillwork.
Entailment: The church separates the nuns from the public so they can be heard but not seen.
Contradiction: In the 18th-century Baroque church, you can see the nuns and ask for autographs.