What's the release date of model number CORE I7-940?
CREATE TABLE table_63642 (
    "Model number" text,
    "sSpec number" text,
    "Frequency" text,
    "Turbo" text,
    "Cores" real,
    "L2 cache" text,
    "L3 cache" text,
    "I/O bus" text,
    "Mult." text,
    "Memory" text,
    "Voltage" text,
    "Socket" text,
    "Release date" text,
    "Part number(s)" text,
    "Release price ( USD )" text
)
SELECT "Release date" FROM table_63642 WHERE "Model number" = 'core i7-940'
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's the release date of model number CORE I7-940? ### Input: CREATE TABLE table_63642 (
    "Model number" text,
    "sSpec number" text,
    "Frequency" text,
    "Turbo" text,
    "Cores" real,
    "L2 cache" text,
    "L3 cache" text,
    "I/O bus" text,
    "Mult." text,
    "Memory" text,
    "Voltage" text,
    "Socket" text,
    "Release date" text,
    "Part number(s)" text,
    "Release price ( USD )" text
) ### Response: SELECT "Release date" FROM table_63642 WHERE "Model number" = 'core i7-940'