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:2019-02-28, Stock:NVO, The news for the past five days is as follows:
2019-02-21: NEWS1: Should You Invest in the VanEck Vectors Pharmaceutical ETF (PPH)?.NEWS2: Should You Invest in the VanEck Vectors Pharmaceutical ETF (PPH)?.NEWS3: Should You Invest in the VanEck Vectors Pharmaceutical ETF (PPH)?.
2019-02-22: NEWS1: Pharma Stock Roundup: MRK Buys IMDZ, FDA Grants Priority Review to Some Candidates.NEWS2: Pharma Stock Roundup: MRK Buys IMDZ, FDA Grants Priority Review to Some Candidates.NEWS3: Pharma Stock Roundup: MRK Buys IMDZ, FDA Grants Priority Review to Some Candidates.
2019-02-25: nan
2019-02-26: NEWS1: Strongbridge Biopharma plc (SBBP) Q4 2018 Earnings Conference Call Transcript.
2019-02-27: NEWS1: Ophthotech's (OPHT) Q4 Loss Wider, Gene Therapy in Focus.NEWS2: Ophthotech's (OPHT) Q4 Loss Wider, Gene Therapy in Focus.NEWS3: Ophthotech's (OPHT) Q4 Loss Wider, Gene Therapy in Focus.

Answer: Decrease