Utterance: Ditz donc, mès, vendràs gostar, a miègjorn? 
Translation: Tell me, You'll come for lunch, won't you?
[Say(imperative, 2nd sing.) so, but, come(future, 2nd plur.) have-lunch, at noon?]
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Situation: Joan has said that he will be back for lunch. Ask him for confirmation.
Interpretation of the utterance: Confirmatory yes-no question
Informator: E. B.
Utterance: Ditz donc, mès, vendràs gostar, a miègjorn?
Translation: Tell me, You'll come for lunch, won't you?
[Say(imperative, 2nd sing.) so, but, come(future, 2nd plur.) have-lunch, at noon?]