Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bravo, bravo!

One of the most enjoyable production of Tosca in recent years. The tenor and soprano were excellent in singing and acting, as well as Raimondi's Scarpia.The sound and the view is much better than actually being there in the Arena. The real canon fire in the first act is awesome.What a treat. Grazie, producers.