Situation: You enter your friend María's apartment but you can't see her from the hallway where you are. You think she's in her room. You call up to her.

Semantic interpretation: Vocative.

Speaker: JMR

Utterance: ¡Nati! ¡Nati! ¿Estás en la pieza?

Translation: ¡Nati! ¡Nati! Are you in there?