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:2019-01-16, Stock:NVO, The news for the past five days is as follows:
2019-01-09: nan
2019-01-10: NEWS1: [$$] Sanofi and Novo Nordisk press ahead with US insulin prices rises.
2019-01-11: NEWS1: 5 Reasons Why Investors Should Buy Novo Nordisk (NVO) in 2019.NEWS2: J&J raises U.S. prices on around two dozen drugs.
2019-01-14: NEWS1: 6 Bargain Stocks With Positive Earnings Growth Estimates.NEWS2: House Democrats launch drug-pricing probe into a dozen major health-care companies.
2019-01-15: nan

Answer: Decrease