Input (grade 9): In a public square outside Dr. Bartolo's house a band of musicians and a poor student named Lindoro are serenading, to no avail, the window of Rosina (Ecco ridente in cielo\/There, laughing in the sky).
Output (grade 7): In a town square outside Dr. Bartolo's house a band of musicians are serenading outside the window of Rosina.