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:2019-11-21, Stock:snap, The news for the past five days is as follows:
2019-11-14: NEWS1: Snap (NYSE:SNAP) Has Debt But No Earnings; Should You Worry?.NEWS2: Snapchat Founder’s Sister Launches Audio Erotica Site.
2019-11-15: NEWS1: How Gen Z and Millennials are engaging with influencers.NEWS2: If Not for Spectacles 3, SNAP Stock Would Be Sitting Pretty.NEWS3: With Bilibili Stock Stuck in Neutral, Study Now and Buy Later.NEWS4: 3 Big Stock Charts for Friday: Snap, Pfizer and Splunk.NEWS5: Download Some Profits From Zynga Stock.
2019-11-18: NEWS1: Snap CEO Evan Spiegel Talks TikTok, Politics And Earnings.NEWS2: Twitter (TWTR) Rolls Out Political Ads Policy Ahead of Ban.NEWS3: [video]Snap Shares Up as Evan Spiegel Says Snapchat Fact-Checks Political Ads.
2019-11-19: NEWS1: OK boomer: Older users driving Snapchat growth.
2019-11-20: nan

Answer: Decrease