Who won gold in the games where Pan Cheng-Tsung won silver?
CREATE TABLE table_35837 (
    "Year" real,
    "Location" text,
    "Gold" text,
    "Silver" text,
    "Bronze" text
)
SELECT "Gold" FROM table_35837 WHERE "Silver" = 'pan cheng-tsung'
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 gold in the games where Pan Cheng-Tsung won silver? ### Input: CREATE TABLE table_35837 (
    "Year" real,
    "Location" text,
    "Gold" text,
    "Silver" text,
    "Bronze" text
) ### Response: SELECT "Gold" FROM table_35837 WHERE "Silver" = 'pan cheng-tsung'