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:2018-12-21, Stock:NVO, The news for the past five days is as follows:
2018-12-14: nan
2018-12-17: NEWS1: [$$] Staten Biotechnology Strikes $488 Million Deal With Novo.
2018-12-18: NEWS1: 3 Biotechs With Potential Blockbusters Near the Finish Line.NEWS2: 3 Biotechs With Potential Blockbusters Near the Finish Line.NEWS3: 3 Biotechs With Potential Blockbusters Near the Finish Line.
2018-12-19: NEWS1: Strongbridge completes $181.7M sale of hormone drug to Novo Nordisk.NEWS2: Here is What Hedge Funds Think About Novo Nordisk A/S (NVO).
2018-12-20: NEWS1: European ADRs Move Higher in Thursday Trading.NEWS2: European ADRs Move Higher in Thursday Trading.

Answer: Decrease