What district has 213 constituents?
CREATE TABLE table_31338 (
    "Constituency No." real,
    "Vidhan Sabha Constituency" text,
    "Reservation for SC/ST" text,
    "District" text,
    "Lok Sabha" text
)
SELECT COUNT("District") FROM table_31338 WHERE "Constituency No." = '213'
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 district has 213 constituents? ### Input: CREATE TABLE table_31338 (
    "Constituency No." real,
    "Vidhan Sabha Constituency" text,
    "Reservation for SC/ST" text,
    "District" text,
    "Lok Sabha" text
) ### Response: SELECT COUNT("District") FROM table_31338 WHERE "Constituency No." = '213'