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:2019-07-31, Stock:RIO, The news for the past five days is as follows:
2019-07-24: NEWS1: Miners weigh on London as broker calls top for iron ore.NEWS2: Shares in major iron ore miners fall.NEWS3: Stocks to watch: Rio Tinto, Aston Martin, ITV, Marston’s, Trainline.
2019-07-25: NEWS1: EBRD open to funding discussions on Rio’s Mongolia copper project.NEWS2: Mining Executives Split on Who Bears Burden of Climate Change.NEWS3: Anglo American joins the share buyback club.
2019-07-26: NEWS1: Is iShares Edge MSCI Multifactor Intl ETF (INTF) a Strong ETF Right Now?.NEWS2: Is iShares Edge MSCI Multifactor Intl ETF (INTF) a Strong ETF Right Now?.NEWS3: Is iShares Edge MSCI Multifactor Intl ETF (INTF) a Strong ETF Right Now?.NEWS4: Mesabi Trust (MSB) Ex-Dividend Date Scheduled for July 29, 2019.NEWS5: Mesabi Trust (MSB) Ex-Dividend Date Scheduled for July 29, 2019.NEWS6: What Kind Of Shareholders Own Rio Tinto Group (LON:RIO)?.
2019-07-29: nan
2019-07-30: NEWS1: Rio Tinto Sees Hammer Chart Pattern: Time to Buy?.NEWS2: Rio Tinto Sees Hammer Chart Pattern: Time to Buy?.NEWS3: Rio Tinto Sees Hammer Chart Pattern: Time to Buy?.

Answer: Decrease