user: ### NOW ANSWER:
Question: Which Pinyin has a County of Changhua?
Columns: ['City', 'Chinese', 'Pinyin', 'County', 'Population (2010)']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['New Taipei', '新北', 'Xīnběi', 'Special municipality', 3903745.0]
SQL:

assistant: SELECT "Pinyin" FROM "Table" WHERE "County" = 'Changhua';