user: Question: What is the total urban population of the city with the pinyin translation Chángchūn?
Columns: ['City', 'Chinese', 'Pinyin', 'Province', 'Urban Population (2010)', 'Administrative Population (2010)']
Types: ['text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Shanghai', '上海', 'Shànghǎi', 'Municipality', 22315426.0, 23019148.0]
SQL:

assistant: SELECT SUM("Urban Population (2010)") FROM "Table" WHERE "Pinyin" = 'Chángchūn';