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:2020-07-21, Stock:NVS, The news for the past five days is as follows:
2020-07-14: NEWS1: New Products, Expanded Indications Drive Sales of Top 5 Pharmas.NEWS2: Why Rigel Pharmaceuticals Stock Skyrocketed 91% Today.NEWS3: Amgen Stock: Is The Biotech Behemoth A Buy Amid A Breakout?.
2020-07-15: NEWS1: Merck Is Now Pursuing Two Coronavirus Vaccines — Is Merck Stock A Buy?.NEWS2: Is Neoleukin Therapeutics a Buy?.
2020-07-16: NEWS1: The Daily Biotech Pulse: Mallinckrodt Gets FDA Panel Backing, Regulatory Setback For Tricida, Relay Therapeutics IPO.NEWS2: Novartis To Sell Covid-19 Drugs At Zero-Profit To Low-Income Countries.NEWS3: Novartis to provide 'no profit' COVID-19 drugs to low income countries.NEWS4: Novartis launches first-of-its-kind not-for-profit portfolio of medicines for symptomatic treatment of COVID-19.NEWS5: Stocks - Europe Seen Lower Ahead of ECB Meeting.
2020-07-17: nan
2020-07-20: nan

Answer: Decrease