CREATE TABLE table_name_6 (frequency VARCHAR, owner VARCHAR, call_sign VARCHAR)

What is the frequency for the radio owned by bell media with a call sign of chsu-fm?
SELECT frequency FROM table_name_6 WHERE owner = "bell media" AND call_sign = "chsu-fm"
SELECT "frequency" FROM "table_name_6" WHERE "bell media" = "owner" AND "call_sign" = "chsu-fm"