Text: The great popular attraction, situated in the southern arm of the transept, approached through the Portail de l'Horloge, is the 19th-century astronomical clock with its elaborate mechanical figures that appear with chimes at 12:30pm.
Entailment: The 19th century astronomical clock chimes at 12:30pm every day.
Contradiction: The old astronomical clock has not worked since the 19th century.