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:2019-03-22, Stock:NVS, The news for the past five days is as follows:
2019-03-15: NEWS1: Roche Gets Approval for Label Expansion of MabThera in Europe.NEWS2: Roche Gets Approval for Label Expansion of MabThera in Europe.NEWS3: Roche Gets Approval for Label Expansion of MabThera in Europe.NEWS4: The Daily Biotech Pulse: KaryoPharm's Selinexor Review Delayed, FDA Accepts Adamis Opioid Overdose Drug NDA.
2019-03-18: NEWS1: Alnylam's (ALNY) Impressive Pipeline Drives Share Price.NEWS2: Novartis' (NVS) Alcon Acquired PowerVision for $285 Million.NEWS3: Novartis' (NVS) Alcon Acquired PowerVision for $285 Million.NEWS4: Novartis' (NVS) Alcon Acquired PowerVision for $285 Million.
2019-03-19: NEWS1: Tilray Lags Behind Its Marijuana Peers.NEWS2: Tilray Lags Behind Its Marijuana Peers.NEWS3: Tilray Earnings Impressive: More Reasons to Buy Marijuana ETFs.NEWS4: Tilray Earnings Impressive: More Reasons to Buy Marijuana ETFs.NEWS5: Tilray Earnings Impressive: More Reasons to Buy Marijuana ETFs.NEWS6: 3 Blue Chip Stocks That Just Hit 52-Week Highs: Are They Buys?.NEWS7: 3 Blue Chip Stocks That Just Hit 52-Week Highs: Are They Buys?.NEWS8: 3 Blue-Chip Stocks That Just Hit 52-Week Highs: Are They Buys?.NEWS9: Tilray Inc (TLRY) Q4 2018 Earnings Conference Call Transcript.NEWS10: Alnylam's (ALNY) Impressive Pipeline Drives Share Price.NEWS11: Alnylam's (ALNY) Impressive Pipeline Drives Share Price.
2019-03-20: NEWS1: Major biotech landlord plants flag in East Bay with acquisition of Novartis site.NEWS2: Conatus (CNAT) Focuses on Developing NASH Candidate Emricasan.NEWS3: Conatus (CNAT) Focuses on Developing NASH Candidate Emricasan.NEWS4: Jazz Pharmaceuticals' Sleep Drug NDA Awaits FDA Decision.NEWS5: Jazz Pharmaceuticals' Sleep Drug NDA Awaits FDA Decision.NEWS6: Jazz Pharmaceuticals' Sleep Drug NDA Awaits FDA Decision.NEWS7: Conatus (CNAT) Focuses on Developing NASH Candidate Emricasan.
2019-03-21: NEWS1: Is Biogen a Bad-News Buy Now?.NEWS2: Cooper Companies' (COO) CooperVision Gains Momentum Globally.NEWS3: Cooper Companies' (COO) CooperVision Gains Momentum Globally.NEWS4: Cooper Companies' (COO) CooperVision Gains Momentum Globally.

Answer: Decrease