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:2019-08-21, Stock:COST, The news for the past five days is as follows:
2019-08-14: NEWS1: Who Still Shops At Macy's? 10 Retailers Cash In On Macy's Woes.NEWS2: Daily Dividend Report: STI, UNH, COST, DLR, HAL.NEWS3: Daily Dividend Report: STI, UNH, COST, DLR, HAL.NEWS4: Jim Simons Exits UnitedHealth, Costco.NEWS5: Retail Sector Earnings in Focus.NEWS6: Retail Sector Earnings in Focus.NEWS7: Bay Area malls weather wild retail storm with solid occupancy, leasing activity.
2019-08-15: NEWS1: Walmart Comps & E-Commerce Growth Impress: What's Next for WMT?.NEWS2: Costco (COST) Outpaces Stock Market Gains: What You Should Know.NEWS3: Noteworthy Thursday Option Activity: GS, COST, MSFT.NEWS4: Noteworthy Thursday Option Activity: GS, COST, MSFT.NEWS5: Interview With Shopify CEO Tobias Lutke.NEWS6: Interview With Shopify CEO Tobias Lutke.NEWS7: 10 Retailers Cash In On Macy's Woes (And It's Not Walmart).
2019-08-16: NEWS1: Target (TGT) Q2 Earnings is Likely to Improve Y/Y: Here's Why.NEWS2: Target (TGT) Q2 Earnings is Likely to Improve Y/Y: Here's Why.NEWS3: Is Walmart Stock A Good Buy Right Now? Here's What Earnings, Charts Say.NEWS4: Target (TGT) Q2 Earnings is Likely to Improve Y/Y: Here's Why.NEWS5: Walmart Comps & E-Commerce Growth Impress: What's Next for WMT?.NEWS6: Walmart Comps & E-Commerce Growth Impress: What's Next for WMT?.
2019-08-19: NEWS1: What's Next for Walmart Stock & A Target Earnings Preview.NEWS2: What's Next for Walmart Stock & A Target Earnings Preview.NEWS3: What's Next for Walmart Stock & A Target Earnings Preview.NEWS4: Jim Cramer: Retail Buys Must Have a Killer Online or a Bruising Offline Presence.NEWS5: What to expect as major retailers report earnings.NEWS6: Things You Need to Know Before L Brands' (LB) Q2 Earnings.NEWS7: Things You Need to Know Before L Brands' (LB) Q2 Earnings.NEWS8: Factors Setting the Tone for Foot Locker's (FL) Q2 Earnings.NEWS9: Factors Setting the Tone for Foot Locker's (FL) Q2 Earnings.NEWS10: 3 Dividend Stocks Perfect for Retirees.NEWS11: 3 Dividend Stocks Perfect for Retirees.NEWS12: Factors Setting the Tone for Foot Locker's (FL) Q2 Earnings.NEWS13: 3 Dividend Stocks Perfect for Retirees.NEWS14: Things You Need to Know Before L Brands' (LB) Q2 Earnings.NEWS15: Target Corporation (TGT) Ex-Dividend Date Scheduled for August 20, 2019.NEWS16: Target Corporation (TGT) Ex-Dividend Date Scheduled for August 20, 2019.
2019-08-20: NEWS1: Falling Yields Fuel Housing Market Demand.NEWS2: Home Depot Earnings: Is Trouble Brewing for HD?.NEWS3: Home Depot Earnings: Is Trouble Brewing for HD?.NEWS4: Will Higher Expenses Hurt Abercrombie's (ANF) Q2 Earnings?.NEWS5: Will Higher Expenses Hurt Abercrombie's (ANF) Q2 Earnings?.NEWS6: Home Depot Earnings: Is Trouble Brewing for HD?.NEWS7: Costco (COST) Stellar Comps Aiding Stock's Run on Bourses.NEWS8: Costco (COST) Stellar Comps Aiding Stock's Run on Bourses.NEWS9: Will Higher Expenses Hurt Abercrombie's (ANF) Q2 Earnings?.NEWS10: Costco (COST) Stellar Comps Aiding Stock's Run on Bourses.NEWS11: Costco Children’s Golf Classic brings in record sum, country star brings down the house.

Answer: Rise