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:2021-04-22, Stock:CAT, The news for the past five days is as follows:
2021-04-15: NEWS1: Caterpillar (CAT) Stock Sinks As Market Gains: What You Should Know.NEWS2: Caterpillar Inc. to Announce First-Quarter 2021 Financial Results on April 29.NEWS3: Caterpillar (CAT): Strong Industry, Solid Earnings Estimate Revisions.
2021-04-16: NEWS1: Caterpillar Inches Toward Buy Point.NEWS2: KMTUY or CAT: Which Is the Better Value Stock Right Now?.NEWS3: Caterpillar Announces Board of Directors Changes.
2021-04-19: NEWS1: Stocks have 'more room to grow' following Biden's infrastructure plan: Analyst.NEWS2: Cathie Wood's ARK Invest Only Owns 4 Dow Stocks, and They Aren't What You Think.
2021-04-20: nan
2021-04-21: NEWS1: Caterpillar Financial Services GmbH & Co KG -- Moody's upgraded the long- and short-term ratings of Caterpillar and its supported finance operations to A2 and Prime-1; outlook is stable.NEWS2: What's in the Offing for Packaging Corp's (PKG) Q1 Earnings?.

Answer: Decrease