Table: radio_stations_50
Columns: call_sign
frequency_mhz
city_of_license
erp_w
class
fcc_info

Question: Which ERP W is the lowest one that has a Frequency MHz of 91.3?
SQL: SELECT MIN("erp_w") FROM radio_stations_50 WHERE "frequency_mhz" = 91.3

Question: Which Class has a Frequency MHz of 107.5?
SQL: SELECT "class" FROM radio_stations_50 WHERE "frequency_mhz" = 107.5

Question: Which Frequency MHz is the highest one that has a City of license of byron, ga?
SQL: SELECT MAX("frequency_mhz") FROM radio_stations_50 WHERE "city_of_license" = 'byron, ga'

Question: Which FCC info has a Call sign of wsja?
SQL: SELECT "fcc_info" FROM radio_stations_50 WHERE "call_sign" = 'wsja'