CREATE TABLE table_77341 ("Call sign" TEXT, "Frequency" TEXT, "City of license" TEXT, "State" TEXT, "FCC info" TEXT)

What is the frequency of the radio station with a call sign of WGNR-FM?
SELECT "Frequency" FROM table_77341 WHERE "Call sign" = 'wgnr-fm'
SELECT "Frequency" FROM "table_77341" WHERE "Call sign" = 'wgnr-fm'