What CD has a catalog # of PCR 502?
CREATE TABLE table_70557 (
    "Catalog #" text,
    "Title" text,
    "Year" text,
    "Composer" text,
    "Released" real
)
SELECT "Title" FROM table_70557 WHERE "Catalog #" = 'pcr 502'
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: What CD has a catalog # of PCR 502? ### Input: CREATE TABLE table_70557 (
    "Catalog #" text,
    "Title" text,
    "Year" text,
    "Composer" text,
    "Released" real
) ### Response: SELECT "Title" FROM table_70557 WHERE "Catalog #" = 'pcr 502'