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:2021-12-15, Stock:BA, The news for the past five days is as follows:
2021-12-08: NEWS1: Americafirst Quantitative Funds Buys iShares 7-10 Year Treasury Bond ETF, iShares 10-20 Year ....NEWS2: UPDATE 1-Airbus takes lead in Dutch KLM jet contest - sources.NEWS3: Airbus takes lead in Dutch KLM jet contest - sources.NEWS4: Lockheed's (LMT) Arm Wins Deal to Support CH-53K Aircraft.NEWS5: Do Hedge Funds Love The Boeing Company (BA)?.
2021-12-09: NEWS1: Boeing (BA) Dips More Than Broader Markets: What You Should Know.NEWS2: UPDATE 1-Veteran Boeing airplanes executive Mark Jenks to retire.NEWS3: Veteran Boeing airplanes executive Mark Jenks to retire.NEWS4: Why American Airlines will stop flying to Honolulu from Charlotte Douglas International Airport.NEWS5: Dow Jones Stalls; Donald Trump SPAC Dives; Tesla Stock Reverses As Lucid Sinks.NEWS6: Dow Jones Stalls As Nasdaq Falls; Donald Trump SPAC Dives; Tesla Stock Reverses As Lucid Sinks.NEWS7: Dow Jones Gains But Nasdaq Falls; Tesla Stock Reverses As Lucid Sinks; Donald Trump SPAC Retreats.NEWS8: Cramer's Mad Money Recap: Boeing, Hormel, Ford.NEWS9: American Airlines cutting some European routes out of PHL following Boeing aircraft delays.NEWS10: American Airlines expects to bring back several international flights at CLT next year.NEWS11: American Airlines to Reduce International Flights Due to Boeing Dreamliner Delays.NEWS12: Biden names Meg Whitman ambassador to Kenya, Evergrande defaults, Blue Origin delays rocket launch.NEWS13: Boeing Stock Falls as 787 Delays Prompt American Airlines to Cut Some Flights.NEWS14: 5 Top Decliners Thursday as Stocks Edged Lower on Omicron Woes.NEWS15: UPDATE 3-American Airlines plans to reduce international flights next summer.NEWS16: American Airlines plans to reduce international flights next summer.NEWS17: American Weaker on Report Dreamliner Delays to Hurt Overseas Frequency.NEWS18: Boeing Stock Slides As American Airlines Cuts International Routes On 787 Dreamliner Delays.NEWS19: American Air to Pare Overseas Routes Due to Boeing Delivery Delays.
2021-12-10: NEWS1: The Lockheed F-35 Wins Another European Fighter Jet Competition.NEWS2: Boeing (BA) Wins $367M Deal to Modify F/A-18 Fighter Jets.NEWS3: Company Insiders Are Back in Buying Mode—Even Tesla’s Elon Musk.NEWS4: Boeing names Elizabeth Lund to succeed retiring Commercial Airplanes exec.
2021-12-13: NEWS1: Why Boeing Stock Dropped Monday.NEWS2: Dow Jones Slips; Elon Musk Says This, Bitcoin Plunges; AMC Stock, GameStop Crater.NEWS3: UPDATE 2-U.S. Senate committee faults FAA oversight of Boeing.NEWS4: U.S. Senate committee faults FAA oversight of Boeing.NEWS5: U.S. Senate panel faults FAA oversight of Boeing.NEWS6: Space tourism is ‘a small part of the overall space economy,’ ProcureAM CEO says.NEWS7: News in Brief: Native Realty relocates headquarters; Cannabist opens dispensary in Delray Beach.NEWS8: Region's Boeing 787 suppliers could see production delays into spring.
2021-12-14: NEWS1: UPDATE 1-Former Boeing pilot says FAA official called him 'scapegoat' for crashes.NEWS2: Boeing switches Starliner capsule for NASA test flight, eyes new launch date with Colorado's ULA.NEWS3: Catalyst Pivotal Growth Fund Buys DocuSign Inc, NVIDIA Corp, Bill. ....NEWS4: Former Boeing pilot says FAA official called him 'scapegoat' for crashes.NEWS5: Former Boeing pilot says FAA official called him 'scapegoat'.NEWS6: Boeing on track to double commercial deliveries year over year.NEWS7: Boeing on Track to Double Aircraft Deliveries in 2021.NEWS8: Boeing delivers 34 aircraft in November, picks up Southwest order.NEWS9: Boeing's Starliner Is Still Stuck on the Launchpad.NEWS10: Boeing New Plane Deliveries Quadruple in November From 2020.NEWS11: Multifamily developer buys two large Renton parcels from Boeing.

Answer: Decrease