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:2018-10-31, Stock:SBAC, The news for the past five days is as follows:
2018-10-24: NEWS1: 8 Overlooked Stocks Poised For Big Contrarian Gains.
2018-10-25: NEWS1: Agree To Buy SBA Communications Corp At $125, Earn 2% Annualized Using Options.NEWS2: Agree To Buy SBA Communications Corp At $125, Earn 2% Annualized Using Options.NEWS3: See what the IHS Markit Score report has to say about SBA Communications Corp..
2018-10-26: nan
2018-10-29: NEWS1: Can Demographic Tailwinds Drive HCP's Earnings This Season?.NEWS2: Can Demographic Tailwinds Drive HCP's Earnings This Season?.
2018-10-30: NEWS1: SBA Communications (SBAC) Shares Cross Above 200 DMA.NEWS2: SBA Communications (SBAC) Shares Cross Above 200 DMA.NEWS3: American Tower Tops Q3 2018 Estimates, Raises 2018 Outlook.

Answer: Decrease