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:2021-07-21, Stock:COST, The news for the past five days is as follows:
2021-07-14: NEWS1: 3 Stocks That Turned $1,000 Into More Than $300,000.
2021-07-15: nan
2021-07-16: NEWS1: 3 E-Commerce Companies Growing Faster in 2021 Than Before the Pandemic.
2021-07-19: NEWS1: UPDATE 2-Tiffany, Costco settle 8-year lawsuit over fake 'Tiffany' rings.NEWS2: Top Stock Reports for Exxon Mobil, Eli Lilly & Costco.NEWS3: Tiffany, Costco settle 8-year lawsuit over fake 'Tiffany' rings.NEWS4: Tiffany, Costco end 8-year lawsuit over fake 'Tiffany' rings.NEWS5: Retail Sales Bounce Back to Pre-Pandemic Highs: 6 Winners.
2021-07-20: NEWS1: The Tiffany-Costco Trademark Dispute Highlights ‘Generic’ Debate.NEWS2: Bed Bath & Beyond CEO unveils revamped nearly 100,000-square-foot NYC flagship store.NEWS3: Costco Shares Attract Big Money.NEWS4: The Zacks Analyst Blog Highlights: Exxon Mobil, Eli Lilly, Costco, Aon and EOG Resources.NEWS5: If You Invested $1000 in Costco 10 Years Ago, This Is How Much You'd Have Now.

Answer: Decrease