At a longitude of 109.9e, how many features were found?
CREATE TABLE table_16799784_3 (
    diameter__km_ VARCHAR,
    longitude VARCHAR
)
SELECT COUNT(diameter__km_) FROM table_16799784_3 WHERE longitude = "109.9E"
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: At a longitude of 109.9e, how many features were found? ### Input: CREATE TABLE table_16799784_3 (
    diameter__km_ VARCHAR,
    longitude VARCHAR
) ### Response: SELECT COUNT(diameter__km_) FROM table_16799784_3 WHERE longitude = "109.9E"