Anchor: The old-established Caveau de la Huchette (rue de la Huchette in St-Germain-des-Pres) opens every night at 9:30pm for listening and dancing to a small combo or big band swing or bebop.
Entailed: There is an entertainment program every night at Caveau de la Huchette.
Contradiction: Music and dancing are forbidden after 8:00pm. and those who doesn't respect it are arrested.
Contradiction: No human can distinguish a single deciview's worth of air pollution. 
Contradiction: dog runs through field
Contradiction: The male surfer is asleep at home.
Contradiction: Always gets laughs.