Text: The demolition of the citadel was a half-hearted job, however, and there's plenty left to see today, from ramparts and castle walls to ruined chapels, stone stairways, and quaint cobbled streets.
Entailment: There are castle walls, ruined chapels, stairways, and more to see.
Contradiction: There is nothing left of the citadel today; every single part of it was demolished.