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:2019-02-07, Stock:RIO, The news for the past five days is as follows:
2019-01-31: NEWS1: Northwest Acquisitions ULC -- Moody's downgrades Northwest Acquisition to B3; outlook Stable.NEWS2: Asian Markets Pare Gains After China Manufacturing Data.NEWS3: Asian Markets Pare Gains After China Manufacturing Data.NEWS4: Australian Market Modestly Higher.NEWS5: Australian Market Modestly Higher.NEWS6: [$$] Australian miners head for best week since 2016 as Vale fallout widens.
2019-02-01: NEWS1: Wall Street Witnesses Best January in 3 Decades: 5 Winners.NEWS2: Wall Street Witnesses Best January in 3 Decades: 5 Winners.NEWS3: Wall Street Witnesses Best January in 3 Decades: 5 Winners.
2019-02-04: NEWS1: Asian Markets Mixed In Holiday-thinned Trade.NEWS2: Asian Markets Mixed In Holiday-thinned Trade.NEWS3: Australian Market Notably Higher Ahead Of RBA Decision.NEWS4: Australian Market Notably Higher Ahead Of RBA Decision.NEWS5: Top Ranked Income Stocks to Buy for February 4th.NEWS6: Top Ranked Income Stocks to Buy for February 4th.NEWS7: The Zacks Analyst Blog Highlights: Banco Macro, AdvanSix, Sotherly, Rio Tinto and Resources Connection.NEWS8: The Zacks Analyst Blog Highlights: Banco Macro, AdvanSix, Sotherly, Rio Tinto and Resources Connection.NEWS9: Top Ranked Income Stocks to Buy for February 4th.NEWS10: The Zacks Analyst Blog Highlights: Banco Macro, AdvanSix, Sotherly, Rio Tinto and Resources Connection.NEWS11: Barrick Is ‘Paranoid’ About Tailings Dams: Africa Mining Update.NEWS12: [$$] Rio Tinto ready to back industry-wide response to Brazil dam collapse.NEWS13: Asian Shares Broadly Higher After Strong US Jobs Data.NEWS14: Asian Shares Broadly Higher After Strong US Jobs Data.
2019-02-05: NEWS1: The Zacks Analyst Blog Highlights: UnitedHealth, Banco Bradesco, Itau, Banco Santander and Rio.NEWS2: The Zacks Analyst Blog Highlights: UnitedHealth, Banco Bradesco, Itau, Banco Santander and Rio.NEWS3: The Zacks Analyst Blog Highlights: UnitedHealth, Banco Bradesco, Itau, Banco Santander and Rio.NEWS4: [$$] Australian miners climb after Vale ordered to halt dam use.NEWS5: Gold deal rush sweeps by broader mining sector.NEWS6: Asian Shares Mixed In Thin Holiday Trade.NEWS7: Asian Shares Mixed In Thin Holiday Trade.
2019-02-06: NEWS1: Asian Markets Mostly Higher.NEWS2: Asian Markets Mostly Higher.NEWS3: Australian Market Advances.NEWS4: Australian Market Advances.NEWS5: Rio Tinto (Commercial Paper) plc -- Moody's upgrades all Rio Tinto Group ratings to A2; outlook stable.NEWS6: The Latest Updates From the Vale Dam Disaster in Brazil.NEWS7: Hi-Crush (HCLP) Q4 Earnings Miss, Revenues Beat Estimates.NEWS8: Hi-Crush (HCLP) Q4 Earnings Miss, Revenues Beat Estimates.NEWS9: Hi-Crush (HCLP) Q4 Earnings Miss, Revenues Beat Estimates.

Answer: Decrease