Text: On the south side of the street in the open ground below the castle and on the site of the formerly marshy Nor' Loch are Princes Street Gardens, a welcome place to relax in a sunny day.
Entailment: A nice place to unwind in a sunny day would be in the Princes Street Gardens, located on the south side of the street.
Contradiction: The Princes Street Gardens is a poor choice if you want relaxation as it is too noisy there.