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:2018-08-21, Stock:COST, The news for the past five days is as follows:
2018-08-14: NEWS1: Key Updates from the Consumer Sector Last Week.NEWS2: Why Target’s Q2 Results Could Drive Its Stock Even Higher.
2018-08-15: NEWS1: Notable Wednesday Option Activity: SATS, CRM, COST.NEWS2: Notable Wednesday Option Activity: SATS, CRM, COST.NEWS3: Buckle (BKE) Showcases Strong Comps Performance in July.NEWS4: Buckle (BKE) Showcases Strong Comps Performance in July.NEWS5: Blue Apron Still Won&apos;t Admit It Has a Retention Problem.NEWS6: What Analysts Recommend for Target Stock ahead of Q2.NEWS7: The Opportunity in Amazon’s Grocery Pickup Option.NEWS8: Buckle (BKE) Showcases Strong Comps Performance in July.NEWS9: Walmart Stock Already Is Overpriced Going into Earnings.NEWS10: COST Crosses Above Average Analyst Target.NEWS11: COST Crosses Above Average Analyst Target.NEWS12: Why Target’s Q2 EPS Could See Double-Digit Growth.NEWS13: Will Target’s Margins Improve?.
2018-08-16: NEWS1: The 3 Stocks That Are Leading This Bull Market.NEWS2: The 3 Stocks That Are Leading This Bull Market.NEWS3: Cramer: Don’t dismiss Sen. Elizabeth Warren’s ideas as bad for companies.NEWS4: The 3 Stocks That Are Leading This Bull Market.NEWS5: Stocks - Cisco Gains Midday, Lifting Telecom Shares.NEWS6: Should You Buy Target (TGT) Stock After Walmart's Impressive Earnings?.NEWS7: Should You Buy Target (TGT) Stock After Walmart's Impressive Earnings?.NEWS8: Walmart Stock Rose ~11% Early on August 16.
2018-08-17: NEWS1: Costco Wholesale Corporation Announces Quarterly Cash Dividend.NEWS2: 3 Reasons Capital One Stock Easily Could Surge 25%.NEWS3: 3 Reasons Capital One Stock Easily Could Surge 25%.NEWS4: Raising Sell Stop Protection on Costco as Momentum Has Slowed.NEWS5: Here’s How Walmart’s Sales Fared in Fiscal Q2 2019.NEWS6: 3 Reasons Capital One Stock Easily Could Surge 25%.NEWS7: Walmart Raises Guidance on Solid Fiscal Q2 Earnings.NEWS8: Is Wall Street Underestimating Walmart Despite Robust Q2?.
2018-08-20: NEWS1: Daily Dividend Report: WLK, COST, LOW, EL, GPC, GPS.NEWS2: Daily Dividend Report: WLK, COST, LOW, EL, GPC, GPS.NEWS3: Walmart Stock: Analysts Raised Their Target Prices.

Answer: Rise