What is the evening gown score of the contestant from the District of Columbia with preliminaries smaller than 8.647?
CREATE TABLE table_name_79 (
    evening_gown VARCHAR,
    preliminaries VARCHAR,
    state VARCHAR
)
SELECT COUNT(evening_gown) FROM table_name_79 WHERE preliminaries < 8.647 AND state = "district of columbia"
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 evening gown score of the contestant from the District of Columbia with preliminaries smaller than 8.647? ### Input: CREATE TABLE table_name_79 (
    evening_gown VARCHAR,
    preliminaries VARCHAR,
    state VARCHAR
) ### Response: SELECT COUNT(evening_gown) FROM table_name_79 WHERE preliminaries < 8.647 AND state = "district of columbia"