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:2021-03-18, Stock:NVO, The news for the past five days is as follows:
2021-03-11: nan
2021-03-12: NEWS1: 7 Pharmaceutical Stocks Working on Their Next Blockbuster.
2021-03-15: NEWS1: Novo Nordisk A/S – Share repurchase programme.NEWS2: Data from STEP clinical trial program evaluating effect of semaglutide 2.4 mg in people with obesity to be presented at 2021 ENDO annual meeting.
2021-03-16: nan
2021-03-17: nan

Answer: Decrease