Question: What kind of dramatic work does L'étoile and La serva padrona have in common?
Sentence (from "La serva padrona"): La serva padrona (The Servant Turned Mistress) is an opera buffa by Giovanni Battista Pergolesi (1710 – 1736) to a libretto by Gennaro Antonio Federico, after the play by Jacopo Angello Nelli.
Relevant evidence: Yes