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:2019-11-21, Stock:COST, The news for the past five days is as follows:
2019-11-14: NEWS1: Walmart Stock Is In Buy Zone, But Is It A Good Buy Right Now?.NEWS2: Walmart Earnings Top As E-Commerce Sales Surge 41%; Dow Jones Giant Slashes Gain.NEWS3: Walmart's stock is trading at a record high and one sentence reveals why.
2019-11-15: NEWS1: Trader: Costco Showing 'No Hesitation' Of Breakthrough.NEWS2: Costco Gains More Than 50% YTD: Solid Comps Run a Key Driver.NEWS3: Warren Buffett Finds Wrong Elephant.NEWS4: Starbucks, Amazon and Costco rapped for weak human rights disclosure.NEWS5: Target Q3 Earnings Preview: Buy TGT Stock After Walmart's Growth?.
2019-11-18: NEWS1: Costco (COST) Outpaces Stock Market Gains: What You Should Know.NEWS2: Costco wants to build store next to Crossgates.NEWS3: Near Loomis Costco, Petrovich plans retail, hotel development.NEWS4: Market Morning: Chinese Army in Hong Kong, Boeing Walks Back Comments, Kraft Heinz Cheese Problems.
2019-11-19: NEWS1: Chris Davis' 3rd-Quarter Buys.
2019-11-20: NEWS1: Casey's (CASY) Unmissable Run Makes It a Hot Pick.NEWS2: Loyal Shoppers Ring Up Sales... and Lift Stocks.NEWS3: Some Thoughts on Berkshire Hathaway's Newest Holding.NEWS4: Target (TGT) Picks Up on Q3 Earnings Beat, Upbeat FY19 View.NEWS5: Williams-Sonoma (WSM) to Post Q3 Earnings: What's in Store?.NEWS6: 4 Discount Stocks to Set Retail Earnings on Fire This Season.NEWS7: Moral Money: A warning shot for investors on fossil fuels.

Answer: Decrease