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:NVS, 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: New Zolgensma data demonstrate age-appropriate development when used early, real-world benefit in older children and durability 5+ years post-treatment.
2021-03-16: nan
2021-03-17: NEWS1: Surface Oncology Rises on Rumor ARK's Cathie Wood Will Talk About It At Event.

Answer: Decrease