Which line is the Geumjeong tunnel?
CREATE TABLE table_77993 (
    "Name" text,
    "Location" text,
    "Length in km (mi)" text,
    "Year Completed" text,
    "Line" text
)
SELECT "Line" FROM table_77993 WHERE "Name" = 'geumjeong tunnel'
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: Which line is the Geumjeong tunnel? ### Input: CREATE TABLE table_77993 (
    "Name" text,
    "Location" text,
    "Length in km (mi)" text,
    "Year Completed" text,
    "Line" text
) ### Response: SELECT "Line" FROM table_77993 WHERE "Name" = 'geumjeong tunnel'