Who won the mixed doubles when ji xinpeng won the mens singles?
CREATE TABLE table_12027364_1 (
    mixed_doubles VARCHAR,
    mens_singles VARCHAR
)
SELECT mixed_doubles FROM table_12027364_1 WHERE mens_singles = "Ji Xinpeng"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Who won the mixed doubles when ji xinpeng won the mens singles? ### Input: CREATE TABLE table_12027364_1 (
    mixed_doubles VARCHAR,
    mens_singles VARCHAR
) ### Response: SELECT mixed_doubles FROM table_12027364_1 WHERE mens_singles = "Ji Xinpeng"