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:2019-05-22, Stock:COST, The news for the past five days is as follows:
2019-05-15: NEWS1: Why Target (TGT) Stock Looks Like a Buy Heading into Q1 2019 Earnings.NEWS2: Sanderson Farms (SAFM) to Post Q2 Earnings: Key Takeaways.NEWS3: Sanderson Farms (SAFM) to Post Q2 Earnings: Key Takeaways.NEWS4: Top Retail Stocks to Buy in 2019.NEWS5: Top Retail Stocks to Buy in 2019.NEWS6: Top Retail Stocks to Buy in 2019.NEWS7: 14 Stocks With Special Dividends to Watch.NEWS8: Sanderson Farms (SAFM) to Post Q2 Earnings: Key Takeaways.NEWS9: Costco (COST) Gains But Lags Market: What You Should Know.NEWS10: Costco (COST) Gains But Lags Market: What You Should Know.
2019-05-16: NEWS1: Buy Walmart (WMT) Stock After Q1 Earnings on Delivery & E-commerce Strength?.NEWS2: These are the 3 stocks to play as a catch-up to the retail rally: Technician.NEWS3: Walmart Stock Is a Buy … If It Meets These Requirements.NEWS4: Factors Likely to Influence Ross Stores' (ROST) Q1 Earnings.NEWS5: Factors Likely to Influence Ross Stores' (ROST) Q1 Earnings.NEWS6: Factors Likely to Decide Vipshop's (VIPS) Fate in Q1 Earnings.NEWS7: Factors Likely to Decide Vipshop's (VIPS) Fate in Q1 Earnings.NEWS8: 14 Stocks With Special Dividends to Watch.NEWS9: Factors Likely to Decide Vipshop's (VIPS) Fate in Q1 Earnings.NEWS10: Factors Likely to Influence Ross Stores' (ROST) Q1 Earnings.NEWS11: It’s Never Too Early to Start Thinking About Costco Earnings.NEWS12: Why Target (TGT) Stock Looks Like a Buy Heading into Q1 2019 Earnings.NEWS13: Why Target (TGT) Stock Looks Like a Buy Heading into Q1 2019 Earnings.
2019-05-17: NEWS1: Hormel Foods (HRL) to Post Q2 Earnings: What's in the Cards?.NEWS2: IYC, NFLX, COST, LOW: Large Outflows Detected at ETF.NEWS3: IYC, NFLX, COST, LOW: Large Outflows Detected at ETF.NEWS4: 3 Reasons Costco Stock Is Definitely Worth the Price.NEWS5: Why Target’s Margins Could Stay Low in the First Quarter.NEWS6: Buy Walmart (WMT) Stock After Q1 Earnings on Delivery & E-commerce Strength?.NEWS7: Buy Walmart (WMT) Stock After Q1 Earnings on Delivery & E-commerce Strength?.
2019-05-20: NEWS1: Williams-Sonoma (WSM) to Report Q1 Earnings: What's in Store?.NEWS2: Costco (COST) Gains As Market Dips: What You Should Know.NEWS3: Things You Need to Know Before Deckers' (DECK) Q4 Earnings.NEWS4: Things You Need to Know Before Deckers' (DECK) Q4 Earnings.NEWS5: Best Buy's (BBY) to Post Q1 Earnings: Is a Beat in Store?.NEWS6: Best Buy's (BBY) to Post Q1 Earnings: Is a Beat in Store?.NEWS7: Check Out Target's (TGT) Probability to Beat in Q1 Earnings.NEWS8: Check Out Target's (TGT) Probability to Beat in Q1 Earnings.NEWS9: Best Buy's (BBY) to Post Q1 Earnings: Is a Beat in Store?.NEWS10: Things You Need to Know Before Deckers' (DECK) Q4 Earnings.NEWS11: Target Is Joining Amazon, Walmart, and Costco as a Retail ‘Survivor’.NEWS12: Check Out Target's (TGT) Probability to Beat in Q1 Earnings.
2019-05-21: NEWS1: What Do Analysts Think About Costco Wholesale Corporation's (NASDAQ:COST) Growth?.NEWS2: Foot Locker's (FL) Q1 Earnings Likely to Increase: Here's Why.NEWS3: Foot Locker's (FL) Q1 Earnings Likely to Increase: Here's Why.NEWS4: Better Buy: Costco vs. Walmart.NEWS5: Better Buy: Costco vs. Walmart.NEWS6: Foot Locker's (FL) Q1 Earnings Likely to Increase: Here's Why.NEWS7: Better Buy: Costco vs. Walmart.NEWS8: Costco (COST) Gains As Market Dips: What You Should Know.NEWS9: Costco (COST) Gains As Market Dips: What You Should Know.NEWS10: Williams-Sonoma (WSM) to Report Q1 Earnings: What's in Store?.NEWS11: Williams-Sonoma (WSM) to Report Q1 Earnings: What's in Store?.

Answer: Decrease