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:2018-12-21, Stock:EXC, The news for the past five days is as follows:
2018-12-14: NEWS1: XLU, D, EXC, AEP: ETF Inflow Alert.NEWS2: XLU, D, EXC, AEP: ETF Inflow Alert.NEWS3: Annova's Texas Brownsville LNG export plant passes environmental test.NEWS4: Are Investors Undervaluing Exelon (EXC) Right Now?.NEWS5: Are Investors Undervaluing Exelon (EXC) Right Now?.NEWS6: NRG, AES, and FE: Is There Any Steam Left?.NEWS7: Are Investors Undervaluing Exelon (EXC) Right Now?.NEWS8: Top Utility Gainers in 2018: Chart Indicators.NEWS9: The Zacks Analyst Blog Highlights: Intuitive Surgical, HCA Healthcare, Exelon, 3M and Micron.NEWS10: The Zacks Analyst Blog Highlights: Intuitive Surgical, HCA Healthcare, Exelon, 3M and Micron.NEWS11: Top-Rallied Utilities’ Current Valuations.NEWS12: The Zacks Analyst Blog Highlights: Intuitive Surgical, HCA Healthcare, Exelon, 3M and Micron.
2018-12-17: NEWS1: XLU: Where Utilities Might Go in the Short Term.NEWS2: NRG, AES, FE, and EXC: Analysts’ Recommendations.
2018-12-18: NEWS1: Another 2% Plunge to Start the Week.NEWS2: Another 2% Plunge to Start the Week.NEWS3: Another 2% Plunge to Start the Week.NEWS4: See what the IHS Markit Score report has to say about Exelon Corp..
2018-12-19: nan
2018-12-20: NEWS1: Exelon Supports Workforce Development Efforts in Maryland.NEWS2: BGE ranked top utility for business customers.

Answer: Rise