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:2019-07-24, Stock:RIO, The news for the past five days is as follows:
2019-07-17: NEWS1: Rio Tinto Falls After Posting 2nd-Quarter Production Results.
2019-07-18: NEWS1: Univar Starts Distribution Deal with Novozymes in Canada.NEWS2: Univar Starts Distribution Deal with Novozymes in Canada.NEWS3: Univar Starts Distribution Deal with Novozymes in Canada.
2019-07-19: NEWS1: Is WisdomTree International Hedged Quality Dividend Growth Fund (IHDG) a Strong ETF Right Now?.NEWS2: Is WisdomTree International Hedged Quality Dividend Growth Fund (IHDG) a Strong ETF Right Now?.NEWS3: Is WisdomTree International Hedged Quality Dividend Growth Fund (IHDG) a Strong ETF Right Now?.NEWS4: Alcoa's Q2 2019: Macroeconomic Headwinds And Restructuring Charges Weigh Heavily On Revenue And Bottom Line.NEWS5: Alcoa's Q2 2019: Macroeconomic Headwinds And Restructuring Charges Weigh Heavily On Revenue And Bottom Line.NEWS6: Rio Tinto under fire as Mongolia presses for mine deal changes.NEWS7: Nucor (NUE) Surpasses Q2 Earnings, Lags Revenue Estimates.NEWS8: Nucor (NUE) Surpasses Q2 Earnings, Lags Revenue Estimates.NEWS9: Nucor (NUE) Surpasses Q2 Earnings, Lags Revenue Estimates.
2019-07-22: NEWS1: Has Rio Tinto (RIO) Outpaced Other Basic Materials Stocks This Year?.NEWS2: RPT-COLUMN-Rio Tinto's Mongolia copper problems highlight frontier country risks: Russell.NEWS3: COLUMN-Rio Tinto's Mongolia copper problems highlight frontier country risks: Russell.
2019-07-23: NEWS1: Sherwin-Williams (SHW) Q2 Earnings Top, Sales Miss Estimates.NEWS2: Sherwin-Williams (SHW) Q2 Earnings Top, Sales Miss Estimates.NEWS3: UPDATE 1-BHP makes $400 million climate-change emissions pledge.NEWS4: Sherwin-Williams (SHW) Q2 Earnings Top, Sales Miss Estimates.NEWS5: Aluminum producers in Canada cash in on U.S. tariff exemption.NEWS6: Aluminium producers in Canada cash in on U.S. tariff exemption.NEWS7: Has Rio Tinto (RIO) Outpaced Other Basic Materials Stocks This Year?.NEWS8: Has Rio Tinto (RIO) Outpaced Other Basic Materials Stocks This Year?.NEWS9: The former Rio Tinto adviser who became mining’s Big Short.

Answer: Decrease