What is the Entered service date of the H1 Locomotive?
CREATE TABLE table_6595 (
    "Locomotive" text,
    "Delivered as" text,
    "Entered service" text,
    "Owner" text,
    "Status" text
)
SELECT "Entered service" FROM table_6595 WHERE "Locomotive" = 'h1'
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 is the Entered service date of the H1 Locomotive? ### Input: CREATE TABLE table_6595 (
    "Locomotive" text,
    "Delivered as" text,
    "Entered service" text,
    "Owner" text,
    "Status" text
) ### Response: SELECT "Entered service" FROM table_6595 WHERE "Locomotive" = 'h1'