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:2021-10-18, Stock:snap, The news for the past five days is as follows:
2021-10-11: NEWS1: Snap (SNAP) Dips More Than Broader Markets: What You Should Know.NEWS2: Buy These 2 Tech Stocks Before Q3 Earnings for Long-Term Growth?.NEWS3: Billionaire DE Shaw’s Top 10 Stock Picks.
2021-10-12: nan
2021-10-13: NEWS1: Snapchat down: App not sending snaps in major outage.NEWS2: Why did Snapchat go down?.NEWS3: Snapchat not working - live: App was down for tens of thousands around the world.NEWS4: Snapchat Outage: App Experienced Widespread Technical Issues for More Than Three Hours.
2021-10-14: NEWS1: Snap (SNAP) Reports Next Week: Wall Street Expects Earnings Growth.
2021-10-15: NEWS1: Snap Shares Outpace Facebook’s With Faster Growth and Less Controversy.

Answer: Decrease