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:2021-08-26, Stock:RIO, The news for the past five days is as follows:
2021-08-19: NEWS1: Rio Tinto and WA Government launch industry first vaccination blitz.
2021-08-20: NEWS1: UPDATE 1-Sexual harassment rife in mine camps, Western Australian inquiry finds.
2021-08-23: nan
2021-08-24: NEWS1: Rio Tinto resumes operations at Richards Bay Minerals.NEWS2: Rio Tinto and Sumitomo to assess hydrogen pilot plant at Gladstone’s Yarwun alumina refinery.
2021-08-25: nan

Answer: Decrease