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:2018-12-31, Stock:TSM, The news for the past five days is as follows:
2018-12-21: NEWS1: IBM Taps Samsung for Chip Manufacturing.NEWS2: IBM Taps Samsung for Chip Manufacturing.NEWS3: Marvell Technology Group Ltd. (MRVL) Ex-Dividend Date Scheduled for December 24, 2018.NEWS4: Marvell Technology Group Ltd. (MRVL) Ex-Dividend Date Scheduled for December 24, 2018.NEWS5: IBM Taps Samsung for Chip Manufacturing.
2018-12-24: NEWS1: Cypress Semiconductor Corporation (CY) Ex-Dividend Date Scheduled for December 26, 2018.NEWS2: Cypress Semiconductor Corporation (CY) Ex-Dividend Date Scheduled for December 26, 2018.NEWS3: Kulicke and Soffa Industries, Inc. (KLIC) Ex-Dividend Date Scheduled for December 26, 2018.NEWS4: Kulicke and Soffa Industries, Inc. (KLIC) Ex-Dividend Date Scheduled for December 26, 2018.
2018-12-26: NEWS1: Taiwan Bourse Poised To Snap Losing Streak.NEWS2: Taiwan Bourse Poised To Snap Losing Streak.
2018-12-27: NEWS1: Taiwan Stock Market Draws Another Green Light.NEWS2: Taiwan Stock Market Draws Another Green Light.NEWS3: Monolithic Power Systems, Inc. (MPWR) Ex-Dividend Date Scheduled for December 28, 2018.NEWS4: Monolithic Power Systems, Inc. (MPWR) Ex-Dividend Date Scheduled for December 28, 2018.
2018-12-28: nan

Answer: Decrease