Text: The first Roman town in Gaul (a citadel and spa founded in 125 b.c. as Aquae Sextiae), Aix-en-Provence today is elegant and cultured, charming and cheerful.
Entailment: Aix-en-Provence is very nice, and was built by Romans.
Contradiction: Aix-en-Provence was the last town ever built by Romans in Gaul.