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:2021-01-06, Stock:RIO, The news for the past five days is as follows:
2020-12-29: NEWS1: 15 Biggest Mining Companies In The World.NEWS2: Is Rio Tinto PLC (RIO) a Good Value Investor Stock Now?.
2020-12-30: nan
2020-12-31: nan
2021-01-04: NEWS1: 5 Solid Dividend-Paying Growth Stocks to Enrich Your Portfolio.NEWS2: How Much Are Rio Tinto Group (LON:RIO) Insiders Spending On Buying Shares?.
2021-01-05: NEWS1: EXPLAINER-What's next for Rio Tinto's Arizona copper project after U.S. land swap.NEWS2: British Columbia post-holiday COVID restrictions slow several industrial projects.NEWS3: U.S. Dollar Sees First Drop Since 2017: ETFs & Stocks to Buy.NEWS4: 5 Stocks to Watch Out For as Copper Starts 2021 on a Strong Note.NEWS5: The Zacks Analyst Blog Highlights: Ternium, Newell Brands, PLDT, Rio Tinto and Broadcom.

Answer: Rise