user: Question: Name the total number of pinyin for hsin-yüan-i-ma
Columns: ['Date (CE)', 'Text', 'Simplified characters', 'Traditional characters', 'Pinyin', 'Wade-Giles', 'Literal meaning']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['c. 406', 'Weimojiesuoshuojing', '心如猿猴', '心如猨猴', 'xīn rú yuánhóu', 'hsin ju yuan-hou', '"mind like a monkey"']
SQL:

assistant: SELECT COUNT("Pinyin") FROM "Table" WHERE "Wade-Giles" = 'hsin-yüan-i-ma';