Anchor: General de Gaulle marked the 1944 Liberation of Paris with a mass here, and in 1970 his death was similarly commemorated.
Entailed: There was a mass to mark the Liberation of Paris.
Contradiction: General de Gaulle died in 1944.
Contradiction: Participants knew what was and what wasn't working. 
Contradiction: Two men are pointing guns at a man.
Contradiction: The upstairs is off limit to visitors.
Contradiction: It's amazing!