What's the singer part number of the buttonholer whose storage case is a green plastic box?
CREATE TABLE table_74300 (
    "For shank type" text,
    "Singer part number" text,
    "Uses templates?" text,
    "Description" text,
    "Storage case" text
)
SELECT "Singer part number" FROM table_74300 WHERE "Storage case" = 'green plastic box'
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 singer part number of the buttonholer whose storage case is a green plastic box? ### Input: CREATE TABLE table_74300 (
    "For shank type" text,
    "Singer part number" text,
    "Uses templates?" text,
    "Description" text,
    "Storage case" text
) ### Response: SELECT "Singer part number" FROM table_74300 WHERE "Storage case" = 'green plastic box'