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:2020-06-19, Stock:RIO, The news for the past five days is as follows:
2020-06-12: nan
2020-06-15: NEWS1: Rio Tinto in need of redemption after blasting Aboriginal site.
2020-06-16: NEWS1: The Zacks Analyst Blog Highlights: VALE, BHP, RIO and FSUGY.NEWS2: Australia’s Pension Giant Pressing Rio Over Heritage Site Blasts.
2020-06-17: NEWS1: CORRECTED-Copper sustainable group expects more members following Rio Tinto's units.NEWS2: MEDIA-Dominion Diamond sues Diavik mine partner for breach of contract, other allegations- CBC News.
2020-06-18: NEWS1: Rio Tinto announces details of board-led heritage process review.

Answer: Decrease