Who is the partner of the tournament on 6 July 1987?
CREATE TABLE table_5648 (
    "Outcome" text,
    "Date" text,
    "Tournament" text,
    "Surface" text,
    "Partner" text,
    "Opponents" text,
    "Score" text
)
SELECT "Partner" FROM table_5648 WHERE "Date" = '6 july 1987'
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 is the partner of the tournament on 6 July 1987? ### Input: CREATE TABLE table_5648 (
    "Outcome" text,
    "Date" text,
    "Tournament" text,
    "Surface" text,
    "Partner" text,
    "Opponents" text,
    "Score" text
) ### Response: SELECT "Partner" FROM table_5648 WHERE "Date" = '6 july 1987'