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:2020-12-21, Stock:PEP, The news for the past five days is as follows:
2020-12-14: nan
2020-12-15: NEWS1: Doritos and Twitch Rivals Team Up for the Evolution of Doritos Bowl featuring Call of Duty: Cold War Black Ops & Top Twitch Streamers.
2020-12-16: NEWS1: Is Coca-Cola Stock a Buy?.NEWS2: PepsiCo signs on to sponsor new founder-in-residence program from M13.NEWS3: 10 Best Large-Cap Stocks To Buy According to Ray Dalio.
2020-12-17: nan
2020-12-18: NEWS1: PepsiCo (PEP) Gains As Market Dips: What You Should Know.NEWS2: Quaker Oats Company -- Moody's announces completion of a periodic review of ratings of PepsiCo, Inc..

Answer: Decrease