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:2018-10-31, Stock:COST, The news for the past five days is as follows:
2018-10-24: NEWS1: Costco Wholesale Corporation Announces Quarterly Cash Dividend.
2018-10-25: NEWS1: Moody's turns "positive" as retailers reap rewards from strong U.S. economy.NEWS2: Daily Dividend Report: MRK, MMP, BAC, CMCSA, COST.NEWS3: Daily Dividend Report: MRK, MMP, BAC, CMCSA, COST.
2018-10-26: NEWS1: Notable Friday Option Activity: TWTR, LOW, COST.NEWS2: Notable Friday Option Activity: TWTR, LOW, COST.NEWS3: Costco Wholesale Corp (COST) Files 10-K for the Fiscal Year Ended on August 31, 2018.NEWS4: Will Sears Holdings Survive 2018?.
2018-10-29: NEWS1: Blue Apron&apos;s Latest Partnership Is Very Risky.NEWS2: Costco (COST) Gains As Market Dips: What You Should Know.NEWS3: 18 Kirkland Products You Should Buy at Costco.NEWS4: 15 Things Retirees Should Buy at Costco.NEWS5: Why Blue Apron Holdings Inc. Stock Surged Today.NEWS6: Why Blue Apron Holdings Inc. Stock Surged Today.NEWS7: iShares Russell 1000 Growth ETF Experiences Big Inflow.NEWS8: iShares Russell 1000 Growth ETF Experiences Big Inflow.NEWS9: Should You Think About Buying Costco Wholesale Corporation (NASDAQ:COST) Now?.NEWS10: Today’s Research Reports on Stocks to Watch: Colgate-Palmolive and Costco Wholesale.
2018-10-30: NEWS1: Will Walmart’s Jet.com Save Blue Apron from Being Delisted?.NEWS2: Costco Wholesale Corp (COST) President and CEO W Craig Jelinek Sold $5 million of Shares.NEWS3: 7 Stocks to Buy While You Hide From the Trade War.NEWS4: 7 Stocks to Buy While You Hide From the Trade War.NEWS5: 7 Stocks to Buy While You Hide From the Trade War.NEWS6: Why Blue Apron Is Collaborating with Jet.com.NEWS7: Sam's Club Field Tests a Less &quot;No-Frills&quot; Shopping Experience.NEWS8: Sam's Club Field Tests a Less &quot;No-Frills&quot; Shopping Experience.NEWS9: Sam&apos;s Club Field Tests a Less &quot;No-Frills&quot; Shopping Experience.NEWS10: Costco (COST) Gains As Market Dips: What You Should Know.NEWS11: Costco (COST) Gains As Market Dips: What You Should Know.NEWS12: Blue Apron's Latest Partnership Is Very Risky.NEWS13: Blue Apron's Latest Partnership Is Very Risky.

Answer: Rise