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:2019-09-30, Stock:RIO, The news for the past five days is as follows:
2019-09-23: nan
2019-09-24: NEWS1: UPDATE 2-Brexit worries pressure London shares, Europe steady.
2019-09-25: NEWS1: Rio Tinto ties up with China’s steelmaker Baowu to cut emissions.
2019-09-26: NEWS1: Rio Tinto sees rosy future for diamonds despite end of Argyle.
2019-09-27: NEWS1: Businesses Finally Think Big About Cutting Emissions.NEWS2: Here's What Rio Tinto Group's (LON:RIO) P/E Ratio Is Telling Us.NEWS3: Japan Q4 aluminium premiums set at $97/T, down 10% Q/Q.

Answer: Rise