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:2018-01-09, Stock:RIO, The news for the past five days is as follows:
2018-01-02: NEWS1: FTSE retreats from record as sterling rises.NEWS2: How Miners View the Outlook for Iron Ore Prices.NEWS3: U.K. stocks start 2018 on the back foot as mining rally stalls.
2018-01-03: NEWS1: Royal Gold, Inc. (RGLD) Ex-Dividend Date Scheduled for January 04, 2018.
2018-01-04: nan
2018-01-05: NEWS1: Coal dwarfs battery metals in mining deals despite war on pollution.
2018-01-08: NEWS1: Why Shares of Vale and Rio Tinto Surged in December.NEWS2: Why Shares of Vale and Rio Tinto Surged in December.NEWS3: Why Shares of Vale and Rio Tinto Surged in December.NEWS4: Top 5 Copper Stocks for 2018.

Answer: Rise