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:2018-05-22, Stock:COST, The news for the past five days is as follows:
2018-05-15: NEWS1: Walmart Inc’s Flipkart Deal Should Be a Home Run.NEWS2: Could Target’s Profitability Improve in Fiscal 1Q18?.NEWS3: Yahoo Finance Live: Market Movers - May 15th, 2018.
2018-05-16: NEWS1: 10 Stable Stocks to Buy Now for a Wobbly Market.NEWS2: 10 Stable Stocks to Buy Now for a Wobbly Market.NEWS3: Retail Roundup: Amazon Alternatives, Urban Outfitters Renewal, Costco in France.NEWS4: A Great Stock at a Discount.NEWS5: A Great Stock at a Discount.NEWS6: Starbucks: Here’s how many more stores it wants to add in China.NEWS7: Retail Stocks to Sustain Momentum as Sales Tick Up Again.NEWS8: Retail Stocks to Sustain Momentum as Sales Tick Up Again.NEWS9: What Analysts Recommend for Target Stock before 1Q18.NEWS10: Flipkart Gutted Walmart Inc Stock and That’s Only the Beginning.NEWS11: Walmart Inc’s Flipkart Deal Should Be a Home Run.NEWS12: Walmart Inc’s Flipkart Deal Should Be a Home Run.
2018-05-17: NEWS1: 3 Must Reads on the Market From TheStreet's Top Columnists.NEWS2: SPYV, VZ, WMT, COST: Large Outflows Detected at ETF.NEWS3: SPYV, VZ, WMT, COST: Large Outflows Detected at ETF.NEWS4: Trade of the Day: Costco Wholesale Corporation Leads the Breakout.NEWS5: Trade of the Day: Costco Wholesale Corporation Leads the Breakout.NEWS6: Costco Looks Good for Income Investors as Consumers Become More Frugal.NEWS7: NEWS BITES: Justice Dept. adding 300 more prosecutors, FTC picks industry lawyer as new consumer protection chief, Southwest finishes engine blade inspections.NEWS8: Target’s First-Quarter Earnings Could Mark Double-Digit Growth.NEWS9: Will Target’s Margins Take a Hit? Management Doesn’t Think So.NEWS10: Target Is Closing the Price Gap with Amazon and Walmart.NEWS11: Trade of the Day: Costco Wholesale Corporation Leads the Breakout.
2018-05-18: NEWS1: A Cost-Saving Breakout Strategy for Costco Wholesale Corporation.NEWS2: A Cost-Saving Breakout Strategy for Costco Wholesale Corporation.NEWS3: Walmart’s Digital Push Paid Off: Growth Accelerated in Q1.NEWS4: Walmart Beat Q1 Earnings Estimates, but It Wasn’t Enough.NEWS5: Why Walmart Stock Fell despite Many Positives in First Quarter.NEWS6: A Cost-Saving Breakout Strategy for Costco Wholesale Corporation.NEWS7: Amazon Needs More Whole Foods Stores.NEWS8: Amazon Needs More Whole Foods Stores.NEWS9: Free Daily Technical Summary Reports on Dollar General and Three Other Discount, Variety Stores Stocks.NEWS10: Amazon Needs More Whole Foods Stores.
2018-05-21: NEWS1: General Electric drops again on Fortune 500 list.NEWS2: Will Tiffany (TIF) Manage to See Higher Earnings in Q1?.NEWS3: Will Tiffany (TIF) Manage to See Higher Earnings in Q1?.NEWS4: Are Target's (TGT) Strategies Enough to Lift Its Q1 Earnings?.NEWS5: Are Target's (TGT) Strategies Enough to Lift Its Q1 Earnings?.NEWS6: Retailers Could Hit New Highs.NEWS7: Factors Setting the Tone for Lowe's (LOW) in Q1 Earnings.NEWS8: Factors Setting the Tone for Lowe's (LOW) in Q1 Earnings.NEWS9: What Drove Q1 Sales in Walmart’s US Business?.NEWS10: What’s behind Walmart’s Q1 Sales Beat?.

Answer: Decrease