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:2018-12-21, Stock:snap, The news for the past five days is as follows:
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.
2018-12-19: NEWS1: Snapchat takes on TikTok with launch of Lens Challenges.NEWS2: Snapchat adds Challenges feature with user-created lenses.NEWS3: Elon Musk Reveals Tunnel, Facebook Hit With New Data Scandal and Crossword Secrets Revealed (60-Second Video).NEWS4: Snap Is Losing Its Hardware Chief. Again..NEWS5: Snap Is Losing Its Hardware Chief. Again..NEWS6: Is Snap Inc. (SNAP) A Good Stock To Buy?.NEWS7: Snap Is Losing Its Hardware Chief. Again..NEWS8: Snap (SNAP) Outpaces Stock Market Gains: What You Should Know.NEWS9: Snap (SNAP) Outpaces Stock Market Gains: What You Should Know.NEWS10: 5 Top Stock Trades for Wednesday: MU, ORCL, SNAP, GE.NEWS11: 5 Top Stock Trades for Wednesday: MU, ORCL, SNAP, GE.
2018-12-20: NEWS1: Snap employees won’t get bonuses again this year.NEWS2: Snap shares fall below $5 for the first time.NEWS3: Snap is no longer a compelling short, says BTIG.NEWS4: Kevin McCallister Is Back!.NEWS5: 4 reasons why Spectacles is the best unexpected gift of the year.NEWS6: Will AR & VR Technologies Live Up to Expectations in 2019?.NEWS7: Will AR & VR Technologies Live Up to Expectations in 2019?.NEWS8: Will AR & VR Technologies Live Up to Expectations in 2019?.NEWS9: Snap Isn’t Failing Everywhere.NEWS10: Can Snap Regain Investor Confidence?.NEWS11: A Look at a Little-Known Lethal Facebook Rival.NEWS12: Today's Research Reports on Trending Tickers: Facebook and Snap.

Answer: Decrease