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:2018-02-21, Stock:SO, The news for the past five days is as follows:
2018-02-13: nan
2018-02-14: NEWS1: Southern Company’s Current Valuation in Context.NEWS2: Wednesday Sector Laggards: Utilities, Financial.NEWS3: Wednesday Sector Laggards: Utilities, Financial.NEWS4: How Power Plants Could Impact Southern Company’s 4Q17 Earnings.NEWS5: Will Southern Company Meet 4Q17 Estimates?.
2018-02-15: NEWS1: Southern Company  (SO) Ex-Dividend Date Scheduled for February 16, 2018.NEWS2: Southern Company  (SO) Ex-Dividend Date Scheduled for February 16, 2018.NEWS3: Southern Company’s Price Targets ahead of 4Q17 Earnings.NEWS4: Duke Energy’s Target Price before Its 4Q17 Earnings.NEWS5: How Duke Energy Is Valued Compared to Its Peers.NEWS6: Duke Energy’s Expected 4Q17 Earnings and Outlook.NEWS7: What Could Drive Duke Energy’s 4Q17 Revenues?.NEWS8: What Southern Company’s Recent Chart Indicators Suggest.NEWS9: Ex-Dividend Alert: Southern Co. has a Dividend Yield of 5.19%; Will Trade Ex-Dividend on February 16, 2018.
2018-02-16: NEWS1: How Wall Street Views PPL Corporation ahead of 4Q17 Earnings.NEWS2: Southern Company (SO) to Post Q4 Earnings: Hit or Miss?.NEWS3: Southern Company (SO) to Post Q4 Earnings: Hit or Miss?.NEWS4: Southern Company (SO) to Post Q4 Earnings: Hit or Miss?.NEWS5: Recent Analysis Shows SBA Communications, AMAG Pharmaceuticals, Galectin Therapeutics, Xilinx, J.B. Hunt Transport Services, and Southern Market Influences — Renewed Outlook, Key Drivers of Growth.
2018-02-20: NEWS1: Pre-Market Earnings Report for February 21, 2018 :  SO, LNG, GRMN, DISH, OC, HFC, AAP, WEX, UTHR, BPMC, CNDT, AVA.NEWS2: Pre-Market Earnings Report for February 21, 2018 :  SO, LNG, GRMN, DISH, OC, HFC, AAP, WEX, UTHR, BPMC, CNDT, AVA.NEWS3: Southern Company subsidiaries Alabama Power and Georgia Power continue building the future of energy with innovative Smart Neighborhood projects.NEWS4: FirstEnergy Stock: Is It Strong Compared to Peers?.NEWS5: This $42 Billion Fund Manager Says the Selloff Hit the Wrong Stocks.NEWS6: See what the IHS Markit Score report has to say about Southern Co..

Answer: Decrease