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:2021-03-17, Stock:RIO, The news for the past five days is as follows:
2021-03-10: NEWS1: Rio Tinto makes first sale of aluminium-scandium alloy for 3D printing.NEWS2: Should Value Investors Buy Rio Tinto (RIO) Stock?.NEWS3: Is Rio Tinto (RIO) Outperforming Other Basic Materials Stocks This Year?.
2021-03-11: NEWS1: Top Ranked Income Stocks to Buy for March 11th.
2021-03-12: nan
2021-03-15: NEWS1: Top Ranked Income Stocks to Buy for March 15th.
2021-03-16: nan

Answer: Decrease