What is the call frequency sign of cjjc-fm?
CREATE TABLE table_name_28 (frequency VARCHAR, call_sign VARCHAR)
SELECT frequency FROM table_name_28 WHERE call_sign = "cjjc-fm"
### Context: CREATE TABLE table_name_28 (frequency VARCHAR, call_sign VARCHAR) ### Question: What is the call frequency sign of cjjc-fm? ### Answer: SELECT frequency FROM table_name_28 WHERE call_sign = "cjjc-fm"