Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2020-08-21, Stock:NVS, The news for the past five days is as follows:
2020-08-14: nan
2020-08-17: NEWS1: Novartis announces US District Court for the District of Delaware upholds validity of Gilenya® (fingolimod) dosage regimen patent.
2020-08-18: nan
2020-08-19: nan
2020-08-20: NEWS1: FDA approves Novartis Kesimpta® (ofatumumab), the first and only self-administered, targeted B-cell therapy for patients with relapsing multiple sclerosis.NEWS2: Influencers with Andy Serwer: Dr. Dan Barouch.

Answer: Decrease