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:2021-09-16, Stock:BA, The news for the past five days is as follows:
2021-09-09: NEWS1: Does Downer Q3 Revenue Forecast Make United Airlines Stock A Buy Right Now? Here's What Earnings, Charts Show.NEWS2: Airline recovery slows in wake of Hurricane Ida and spike in COVID-19 cases.
2021-09-10: NEWS1: Analysis-EasyJet bid kicks off scramble for budget airline supremacy.NEWS2: 777 Aircraft Conversions: Mammoth Freighters Takes On The 'Big Twin'.
2021-09-13: NEWS1: Virgin Galactic Stock Falls After Key Flight Delayed.NEWS2: India's SpiceJet settles with Boeing MAX aircraft lessor CDB Aviation.
2021-09-14: NEWS1: UPDATE 1-Boeing delivers 22 jets in August, 737 MAX 'white tails' nearly gone.NEWS2: Boeing (BA) Dips More Than Broader Markets: What You Should Know.NEWS3: Boeing CEO, Board Ask Judge to Clarify Ruling.NEWS4: Boeing's Aircraft Demand Forecast Bullish Despite Short-Term Headwinds.NEWS5: Boeing Raises Outlook on Travel Rebound.NEWS6: Boeing delivers 22 jets in August, 737 MAX 'white tails' nearly gone.NEWS7: Boeing delivers 22 jets in August, 737 MAX 'white tails' nearly gone.NEWS8: Boeing Lifts Jet Demand Forecast on Recovery Signs. What It Means..NEWS9: Boeing's Commercial Aircraft Demand Forecast Bullish Despite Short-Term Headwinds.NEWS10: Boeing Upgrades Outlook for Jet Demand on Pandemic Recovery Hopes.NEWS11: Boeing Projects $9T Aerospace Market Opportunities Over Next Decade.NEWS12: Boeing says aerospace market is recovering as it expected in 2020, sees strong demand for freighters.NEWS13: Boeing raises jet demand forecast on pandemic recovery.NEWS14: Boeing forecasts $9 trillion aerospace market opportunities in commercial, defense and services over next decade.NEWS15: Boeing Slips as New Outlook for Jet Demand Disappoints.NEWS16: Boeing Stock Slips After Outlook Report Shows Pandemic Hit to $9 Trillion Aircraft Market.NEWS17: Boeing Stock Active After Outlook Report Shows Pandemic Hit to $9 Trillion Aircraft Market.NEWS18: Boeing Stock Lower After Outlook Report Shows Pandemic Hit to $9 Trillion Aircraft Market.
2021-09-15: NEWS1: Peter Thiel Bankrolls Satellite Imaging Startup HySpecIQ.NEWS2: Boeing Announces $1.4 Million to Support Afghan Allies and Military Veterans.NEWS3: Boeing Upgrades Long-Term Jet Market Outlook: Stocks to Gain.NEWS4: This is the ’single largest danger’ of A.I. according to expert Kai-Fu Lee.

Answer: Decrease