What is the frequency of the radio station with a call sign of WGNR-FM?
CREATE TABLE table_77341 (
    "Call sign" text,
    "Frequency" text,
    "City of license" text,
    "State" text,
    "FCC info" text
)
SELECT "Frequency" FROM table_77341 WHERE "Call sign" = 'wgnr-fm'
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 frequency of the radio station with a call sign of WGNR-FM? ### Input: CREATE TABLE table_77341 (
    "Call sign" text,
    "Frequency" text,
    "City of license" text,
    "State" text,
    "FCC info" text
) ### Response: SELECT "Frequency" FROM table_77341 WHERE "Call sign" = 'wgnr-fm'