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:2019-06-21, Stock:COST, The news for the past five days is as follows:
2019-06-14: NEWS1: Buy Kroger (KR) Stock Before Q1 Earnings as Amazon-Inspired Grocery Delivery Expands?.NEWS2: Notable Friday Option Activity: WU, COST, SBUX.NEWS3: Notable Friday Option Activity: WU, COST, SBUX.
2019-06-17: NEWS1: Costco Stock: What Does the Target Price Indicate?.NEWS2: Looking Ahead to the Q2 2019 Earnings Season.NEWS3: Looking Ahead to the Q2 2019 Earnings Season.NEWS4: Costco’s Earnings Growth Could Moderate.NEWS5: Why Costco (COST) Stock Might be a Great Pick.NEWS6: Costco: Concerning Valuation despite Impressive Comps.NEWS7: Looking Ahead to the Q2 2019 Earnings Season.NEWS8: Why Costco (COST) Stock Might be a Great Pick.NEWS9: NBEV Stock Is More Than Just CBD — But It’s Still Not Enough.
2019-06-18: NEWS1: BJS Wholesale Club Inc -- Moody's announces completion of a periodic review of ratings of BJS Wholesale Club Inc.NEWS2: Costco Wholesale Corporation -- Moody's announces completion of a periodic review of ratings of Costco Wholesale Corporation.NEWS3: After Hours Most Active for Jun 18, 2019 :  CMCSA, QQQ, VIAB, COST, FLEX, MGI.NEWS4: After Hours Most Active for Jun 18, 2019 :  CMCSA, QQQ, VIAB, COST, FLEX, MGI.NEWS5: Costco, AutoZone, Adobe, Oracle and Applied Materials are part of Zacks Earnings Preview.NEWS6: Costco, AutoZone, Adobe, Oracle and Applied Materials are part of Zacks Earnings Preview.NEWS7: IWF, ACN, COST, AMGN: Large Inflows Detected at ETF.NEWS8: IWF, ACN, COST, AMGN: Large Inflows Detected at ETF.NEWS9: Costco Finds a Way to Offer Even Fewer Frills.NEWS10: Costco, AutoZone, Adobe, Oracle and Applied Materials are part of Zacks Earnings Preview.NEWS11: Costco Finds a Way to Offer Even Fewer Frills.NEWS12: Fed Week Begins in the Green.NEWS13: Fed Week Begins in the Green.NEWS14: Best Buy to sell Flywheel bikes and other popular home exercise machines.NEWS15: Why We Think Costco Wholesale Corporation (NASDAQ:COST) Could Be Worth Looking At.NEWS16: After Hours: Costco Hits All-Time High, MoneyGram Meets Cryptocurrency.NEWS17: After Hours: Costco Hits All-Time High, MoneyGram Meets Cryptocurrency.NEWS18: After Hours: Costco Hits All-Time High, MoneyGram Meets Cryptocurrency.
2019-06-19: NEWS1: Looking Ahead to the Q2 Earnings Season.NEWS2: The Value of 'Willful Agnosticism'.NEWS3: GS Mortgage Securities Trust 2015-GC32 -- Moody's affirms seven classes of GSMS 2015-GC32.
2019-06-20: NEWS1: Here's Why Costco (COST) is a Great Momentum Stock to Buy.NEWS2: Here's Why Costco (COST) is a Great Momentum Stock to Buy.NEWS3: Here's Why Costco (COST) is a Great Momentum Stock to Buy.NEWS4: Can Sam's Club Change How America Buys Tires?.NEWS5: Can Sam's Club Change How America Buys Tires?.NEWS6: Can Sam&apos;s Club Change How America Buys Tires?.NEWS7: Looking Ahead to the Q2 Earnings Season.NEWS8: Looking Ahead to the Q2 Earnings Season.NEWS9: Looking Ahead to the Q2 Earnings Season.NEWS10: Looking Ahead to the Q2 Earnings Season.

Answer: Decrease