Charm Ltd has four operating segments. The following information relates to the year ended 31 March 2020. Assets $000 Segment W Segment X Segment Y Segment Z External revenue $000 27,300 36,100 6,200 7,800 Profit/ (loss) $000 2,450 3,150 (230) (550) 14,540 16,490 3,170 3,800 In addition to the external revenue shown above, Segment W earned revenue of $5.6m from sales to other operating segments. Required: Identify the company's reportable segments for the year ended 31 March 2020 in accordance with the requirements of IFRS8