In the aria "Prendi, per me sei libero," Adina finally admits that she loves the main chracter, who had just recognized her love for him in his aria "Una furtiva lagrima."  
In this work, two characters sing a barcarolle about a gondola girl and "Senator Three-Teeth."  The heroine says she is like a fluttering breeze when she rejects her suitor, choosing instead to be impressed by Belcore.  Gianetta first encourages the heroine to read aloud a story that attracts the hero's attention, and later reveals that the hero's uncle in Ravenna has died.  In the aria "Prendi, per me sei libero," Adina finally admits that she loves the main chracter, who had just recognized her love for him in his aria "Una furtiva lagrima."  The title substance is sold by Dr. Dulcamara in, for 10 points, this Donizetti opera in which Nemorino is impressed by a beverage drunk by Tristan and Isolde.
In this work, two characters sing a barcarolle about a gondola girl and "Senator Three-Teeth."  
The Elixir of Love [or L'elisir d'amore]