user: ### NOW ANSWER:
Question: When Zhang'an County 章安縣 is the commandery capital what is the province?
Columns: ['Province', 'Provincial capital', 'Commandery', 'Commandery capital', 'No. of counties']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Yang 揚', 'Jianye 建業', 'Danyang 丹陽', 'Jianye 建業', 16.0]
SQL:

assistant: SELECT "Province" FROM "Table" WHERE "Commandery capital" = 'Zhang''an County 章安縣';