Utterance: Qual l'a portat, aquel paquet? 
Translation: Who brought this package?
[Who it has brought, this package?]
Situation: You find a package on the table. Ask your son for who brought this package.
Interpretation of the utterance: Neutral Wh-question with a right peripheral element
Informator: G. B.
Utterance: Qual l'a portat, aquel paquet?
Translation: Who brought this package?
[Who it has brought, this package?]