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:2018-04-16, Stock:RIO, The news for the past five days is as follows:
2018-04-09: NEWS1: Vale Stock Falls: Could the Rest of the Year Be Different?.NEWS2: Surprising Analyst 12-Month Target For SLX.NEWS3: Surprising Analyst 12-Month Target For SLX.NEWS4: Rio Tinto stands to win from Rusal sanctions; U.S. consumers to lose.NEWS5: [$$] Rio and coal: grime stars.NEWS6: [$$] Rio and coal: extreme sorts.NEWS7: [$$] Mining Company Suffers Setback in Battle Over Guinea’s Iron-Ore Field.
2018-04-10: NEWS1: Copper Gets Caught in US-China Crossfire.NEWS2: Rusal bonds slump, customers review contracts as U.S. sanctions bite.NEWS3: Rio Tinto reviewing Rusal ties, mum on Queensland venture.NEWS4: Rio Tinto reviewing Rusal ties, mum on Queensland venture.NEWS5: How Vale Could Benefit from China’s Switch to Higher-Quality Ore.NEWS6: Could Vale Improve Its Transparency?.NEWS7: What Enabled Vale to Adopt an Aggressive Dividend Policy.NEWS8: [$$] Rio set for AGM test after call to reject pay report.
2018-04-11: NEWS1: Rio Tinto defends executive bonus structure.NEWS2: Is Rio Tinto Partners a Great Stock for Value Investors?.NEWS3: Is Rio Tinto Partners a Great Stock for Value Investors?.NEWS4: Could Copper Markets Reach a Surplus in 2018?.NEWS5: Rio Tinto under fire from shareholders over pay and climate change.NEWS6: Is Rio Tinto Partners a Great Stock for Value Investors?.NEWS7: Caledonia Mining Corporation Plc (CMCL) Ex-Dividend Date Scheduled for April 12, 2018.NEWS8: Caledonia Mining Corporation Plc (CMCL) Ex-Dividend Date Scheduled for April 12, 2018.NEWS9: Should Vale’s Valuation Be Re-Rated?.NEWS10: [$$] Rio Tinto reviewing all relationships with Rusal.NEWS11: [$$] Mongolia arrests 2 former PMs linked to mining probe.NEWS12: Mongolia anti-graft agency arrests two prime ministers amid mine probe.NEWS13: Rio Tinto Issues AGM Statement - Quick Facts.NEWS14: Rio Tinto Issues AGM Statement - Quick Facts.NEWS15: [$$] Rio Tinto defends executive pay policies, lobby group membership.
2018-04-12: NEWS1: Uncertainties Surround Freeport’s Indonesia Operations.NEWS2: Alamos Gold Inc. (AGI) Ex-Dividend Date Scheduled for April 13, 2018.NEWS3: Alamos Gold Inc. (AGI) Ex-Dividend Date Scheduled for April 13, 2018.NEWS4: US-China Trade War and Copper: Is there a Connection?.
2018-04-13: NEWS1: Rio to call force majeure on some Rusal-linked contracts.NEWS2: UPDATE 1-Rio to call force majeure on some Rusal-linked contracts.NEWS3: Can China Step In after US Sanctions on Russia?.NEWS4: [$$] Rio triggers force majeure on Irish Rusal contract.NEWS5: [$$] Rio Tinto declares force majeure on Rusal deals.

Answer: Decrease