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:2021-02-02, Stock:RIO, The news for the past five days is as follows:
2021-01-26: nan
2021-01-27: NEWS1: Rio Tinto reshuffles top deck to mend Indigenous ties.NEWS2: Rio Tinto unveils new Executive team.
2021-01-28: NEWS1: Palantir Gains Rio Tinto As A Client For Foundry Platform.NEWS2: Turquoise Hill seeks interim order in funding spat with Rio for Mongolia mine.NEWS3: Why Palantir Stock Just Crashed.NEWS4: Palantir Reaches License Deal With Mining Giant Rio Tinto.NEWS5: Turquoise Hill seeks interim order in funding spat with Rio for Mongolia mine.NEWS6: Palantir Inks Accord to Provide Software to Mining Giant Rio Tinto.
2021-01-29: nan
2021-02-01: NEWS1: Shaky Iron Market Turns to Vale for Final Piece of Supply Puzzle.

Answer: Decrease