Text: It did not strike you as peculiar that a famous London doctor should bury himself in a little village like this, and should be in the habit of walking about at all hours of the night, fully dressed?
Entailment: It should be obvious that there is something unusual about a successful London doctor coming to live in a small village.
Contradiction: It is well known that the famous doctor came to the village because he had had enough of the hustle and bustle of the city.