Who was the women's singles champion in 1984?
CREATE TABLE table_77863 (
    "Year" text,
    "Men's singles" text,
    "Women's singles" text,
    "Men's doubles" text,
    "Women's doubles" text,
    "Mixed doubles" text
)
SELECT "Women's singles" FROM table_77863 WHERE "Year" = '1984'
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 was the women's singles champion in 1984? ### Input: CREATE TABLE table_77863 (
    "Year" text,
    "Men's singles" text,
    "Women's singles" text,
    "Men's doubles" text,
    "Women's doubles" text,
    "Mixed doubles" text
) ### Response: SELECT "Women's singles" FROM table_77863 WHERE "Year" = '1984'