What callsign has commenced operations in 2011?
CREATE TABLE table_name_34 (
    callsign VARCHAR,
    commenced_operations VARCHAR
)
SELECT callsign FROM table_name_34 WHERE commenced_operations = 2011
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 callsign has commenced operations in 2011? ### Input: CREATE TABLE table_name_34 (
    callsign VARCHAR,
    commenced_operations VARCHAR
) ### Response: SELECT callsign FROM table_name_34 WHERE commenced_operations = 2011