Task: Question Understanding
Input (English): Context : Sima Yong knew of Sima Jiong's suspicion, and started a conspiracy; he invited Sima Ai the Prince of Changsha to overthrow Sima Jiong, believing that Sima Ai would fail; his plan was then to, in conjunction with Sima Ying, start a war against Sima Jiong. 
Question : Is Sima Ying a male or female?
Output (English): sex or gender