What is the Hanyu Pinyin with an area of 400?
CREATE TABLE table_name_94 (hanyu_pinyin VARCHAR, area__km²_ VARCHAR)
SELECT hanyu_pinyin FROM table_name_94 WHERE area__km²_ = "400"
### Context: CREATE TABLE table_name_94 (hanyu_pinyin VARCHAR, area__km²_ VARCHAR) ### Question: What is the Hanyu Pinyin with an area of 400? ### Answer: SELECT hanyu_pinyin FROM table_name_94 WHERE area__km²_ = "400"