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:2021-05-21, Stock:TMO, The news for the past five days is as follows:
2021-05-14: nan
2021-05-17: nan
2021-05-18: nan
2021-05-19: NEWS1: Thermo Fisher Scientific Declares Quarterly Dividend.NEWS2: Thermo Fisher Scientific and University of California, San Francisco to Open Cell Therapy cGMP Manufacturing and Collaboration Center.
2021-05-20: NEWS1: Thermo Fisher to Set Up Cell Therapy Center at University of California Campus.NEWS2: Thermo Fisher (TMO) to Boost Cell Therapies With UCSF Deal.

Answer: Decrease