Table: radio_stations_46
Columns: frequency
callsign
brand
city_of_license
website
webcast

Question: Which Frequency has a Webcast of •, and a Callsign of xemr?
SQL: SELECT AVG("frequency") FROM radio_stations_46 WHERE "webcast" = '•' AND "callsign" = 'xemr'

Question: Which Website has a Frequency smaller than 760 and a Callsign of kkyx?
SQL: SELECT "website" FROM radio_stations_46 WHERE "frequency" < 760 AND "callsign" = 'kkyx'

Question: Which Webcast has a Callsign of kgbt?
SQL: SELECT "webcast" FROM radio_stations_46 WHERE "callsign" = 'kgbt'

Question: Which Frequency has a Website of •, and a Webcast of •in san antonio?
SQL: SELECT AVG("frequency") FROM radio_stations_46 WHERE "website" = '•' AND "webcast" = '•' AND "city_of_license" = 'san antonio'