Who won the mens singles when lau sui fei won the womens singles?
CREATE TABLE table_30302 (
    "Year Location" text,
    "Mens Singles" text,
    "Womens Singles" text,
    "Mens Doubles" text,
    "Womens Doubles" text
)
SELECT "Mens Singles" FROM table_30302 WHERE "Womens Singles" = 'Lau Sui Fei'
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 mens singles when lau sui fei won the womens singles? ### Input: CREATE TABLE table_30302 (
    "Year Location" text,
    "Mens Singles" text,
    "Womens Singles" text,
    "Mens Doubles" text,
    "Womens Doubles" text
) ### Response: SELECT "Mens Singles" FROM table_30302 WHERE "Womens Singles" = 'Lau Sui Fei'