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:2018-10-22, Stock:NVO, The news for the past five days is as follows:
2018-10-15: NEWS1: 6 Companies Growing Their Book Value.NEWS2: PFE or NVO: Which Is the Better Value Stock Right Now?.NEWS3: PFE or NVO: Which Is the Better Value Stock Right Now?.NEWS4: Novo Nordisk hires AstraZeneca executive to revive struggling biopharma unit.NEWS5: PFE or NVO: Which Is the Better Value Stock Right Now?.NEWS6: Novo Nordisk could close biopharma acquisition this year - CEO.
2018-10-16: NEWS1: Minnesota accuses insulin makers of deceptive drug pricing.
2018-10-17: NEWS1: Minnesota accuses insulin makers of deceptive drug pricing.
2018-10-18: NEWS1: Novo Nordisk (NVO) Faces Pricing Pressure and Competition.NEWS2: Novo Nordisk (NVO) Faces Pricing Pressure and Competition.NEWS3: Novo Nordisk (NVO) Faces Pricing Pressure and Competition.
2018-10-19: nan

Answer: Decrease