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:2021-11-04, Stock:ECL, The news for the past five days is as follows:
2021-10-28: NEWS1: UPDATE 1-Ecolab bolsters pharma services business with $3.7 bln Purolite deal.NEWS2: Ecolab announces $3.7 billion acquisition of Purolite.NEWS3: Ecolab Schedules Purolite Acquisition Webcast and Conference Call for October 29.NEWS4: Ecolab to Acquire Purolite, a Leading Global Provider of Fast-Growing, High Value Separation and Purification Solutions to Life Sciences and Critical Industrial Markets.
2021-10-29: nan
2021-11-01: nan
2021-11-02: nan
2021-11-03: NEWS1: Ecolab Schedules Webcast of Industry Conference for November 9, 2021.

Answer: Decrease