Table: fm_stations_5
Columns: call_sign
frequency_mhz
city_of_license
erp_w
class
fcc_info

Question: What is the class for the ERP W of 500?
SQL: SELECT "class" FROM fm_stations_5 WHERE "erp_w" = 500

Question: What is the ERP W for the station whose call sign is K248BJ and whose frequency MHz is higher than 97.5?
SQL: SELECT AVG("erp_w") FROM fm_stations_5 WHERE "call_sign" = 'k248bj' AND "frequency_mhz" > 97.5

Question: In which city is the station licensed whose frequency MHz is higher than 102.3 and whose call sign is K292EU?
SQL: SELECT "city_of_license" FROM fm_stations_5 WHERE "frequency_mhz" > 102.3 AND "call_sign" = 'k292eu'