Situation: You have just had lunch with a friend of yours, and both of you are quite full. Suddenly your friend stops in front of a bakery. Incredulously (since you've just had a big lunch) ask him if he is still hungry.

Interpretation of the utterance: Exclamative yes-no question with a nuance of surprise

Informator: F. B.

Utterance: N'as encara un cuènh de buèit?

Translation: Are you still hungry?
[(partitive pronoun) have(present, 2nd sing.) still a corner of empty?]