Original sentence: " From Roman times its hillsides have been famous for the production of excellent wine.Its etymology is unknown; it might derive from the Latin for "Valley of Cellars.Today Valpolicella's economy is heavily based on wine production, which is well known, especially Recioto and Amarone, a strong wine made from dried grapes.Valpolicella, the "pearl of Verona", has also been a preferred location for villas
Edited sentence: From Roman times its hillsides have been famous for the production of excellent wine.It has become one of the most interesting regions to visit in Italy, due to the ancient villas, the cultural season in summer and the excellent restaurants and fine resorts.Its etymology is not secure: does it derive from the Latin for "Valley of Cellars".Today Valpolicella's economy is heavily based on wine production, which is well known and appreciated worlwide, expecially Recioto and Amarone, a strong  wine made from dried grapes.Valpolicella, the "pearl of Verona", has also been a  preferred location for villas