With a Division II of Portsmouth, what is the Division IV?
CREATE TABLE table_15118 (
    "Year" real,
    "Division I" text,
    "Division II" text,
    "Division III" text,
    "Division IV" text,
    "Division V" text
)
SELECT "Division IV" FROM table_15118 WHERE "Division III" = 'portsmouth'
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: With a Division II of Portsmouth, what is the Division IV? ### Input: CREATE TABLE table_15118 (
    "Year" real,
    "Division I" text,
    "Division II" text,
    "Division III" text,
    "Division IV" text,
    "Division V" text
) ### Response: SELECT "Division IV" FROM table_15118 WHERE "Division III" = 'portsmouth'