Situation: You're talking to a mutual friend about some friends who want to buy an apartment. You know these friends are moving to Casteddu. Your friend tells you that they are definitely moving to S'Ulumedu. Tell her, with conviction, that this is not the case, that they are moving to Casteddu.
Semantic interpretation: Contradiction statement.
Speaker: AA
Utterance: Liliana, seu sigura e sigura meda ca cussa andat a Casteddu.
Translation: Liliana, I'm sure... I'm very sure that she is going to Casteddu.