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:2020-12-22, Stock:NVO, The news for the past five days is as follows:
2020-12-15: nan
2020-12-16: NEWS1: Novo Nordisk to enter phase 3 development in Alzheimer’s disease with oral semaglutide.
2020-12-17: nan
2020-12-18: NEWS1: Novo Nordisk files for EU regulatory approval of once-weekly semaglutide 2.4 mg for weight management.
2020-12-21: NEWS1: Novo Nordisk (NVO) Files for Semaglutide Label Expansion in EU.

Answer: Decrease