{'it': 'Chi ha pagato volontariamente un indebito può pretenderne la restituzione, solo quando provi d’aver pagato perché erroneamente si credeva debitore.', 'en': 'A person who has voluntarily satisfied a non-existent debt has a right to restitution of the sum paid only if he can prove that he paid it in the erroneous belief that the debt was owed.'}