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:2018-12-19, Stock:snap, The news for the past five days is as follows:
2018-12-12: NEWS1: What ‘Learn with Facebook’ Could Offer Investors.NEWS2: Today's Research Reports on Trending Tickers: Twitter and Snap.NEWS3: The Zacks Analyst Blog Highlights: Ericcson, eGain, inTest, Trivago and Snap.NEWS4: The Zacks Analyst Blog Highlights: Ericcson, eGain, inTest, Trivago and Snap.NEWS5: The Zacks Analyst Blog Highlights: Ericcson, eGain, inTest, Trivago and Snap.NEWS6: Snap (SNAP) Gains As Market Dips: What You Should Know.NEWS7: Snap (SNAP) Gains As Market Dips: What You Should Know.
2018-12-13: NEWS1: Snapchat Still Isn't Attracting Advertisers.NEWS2: Snapchat Still Isn't Attracting Advertisers.NEWS3: Snapchat Still Isn&apos;t Attracting Advertisers.NEWS4: Marketers’ use of Snapchat is on the rise — but is still a fraction of Facebook and Instagram.NEWS5: Apple Heads to Austin, Used Cars Go VR, and KFC Firelogs Are Here (60-Second Video).NEWS6: Facebook and PayPal are a match made in heaven, according to MoffettNathanson.NEWS7: Poor Leadership Continues to Fail Snap Stock.
2018-12-14: NEWS1: After Fantastic Growth, There’s Still Lots to Like About TWTR Stock.NEWS2: After Fantastic Growth, There’s Still Lots to Like About TWTR Stock.NEWS3: Video Will Make the Future of Facebook Stock Bright.NEWS4: Video Will Make the Future of Facebook Stock Bright.NEWS5: YouTube Tops the List of Most Downloaded iPhone Apps This Year.NEWS6: What Does Apple Have in Mind with Platoon Purchase?.NEWS7: Snapchat's reported IPO controversy.NEWS8: Video Will Make the Future of Facebook Stock Bright.NEWS9: Facebook Quietly Copies Mogu to Challenge Amazon.NEWS10: Facebook Quietly Copies Mogu to Challenge Amazon.NEWS11: Facebook Quietly Copies Mogu to Challenge Amazon.
2018-12-17: NEWS1: A Foolish Take: Marketers Still Prefer Instagram to Snapchat.NEWS2: A Foolish Take: Marketers Still Prefer Instagram to Snapchat.NEWS3: A Foolish Take: Marketers Still Prefer Instagram to Snapchat.NEWS4: FB Bug Exposes Photos of 6.8M Users to Outside Developers.NEWS5: FB Bug Exposes Photos of 6.8M Users to Outside Developers.NEWS6: FB Bug Exposes Photos of 6.8M Users to Outside Developers.
2018-12-18: NEWS1: Snap (SNAP) Outpaces Stock Market Gains: What You Should Know.NEWS2: Snap has another new boss for its Spectacles unit.NEWS3: More marketers prefer Instagram.

Answer: Decrease