Table: radio_station_data
Columns: branding
callsign
frequency
power_kw
location

Question: How many locations have the call signs dxjp-fm? 
SQL: SELECT COUNT("location") FROM radio_station_data WHERE "callsign" = 'DXJP-FM'

Question: What is the call sign of the station with the frequency of 90.3mhz
SQL: SELECT "callsign" FROM radio_station_data WHERE "frequency" = '90.3MHz'

Question: What is the call sign for the station that uses the branding, mom's radio 101.5 tacloban?
SQL: SELECT "callsign" FROM radio_station_data WHERE "branding" = 'Mom''s Radio 101.5 Tacloban'

Question: What is the branding for stations located in Cebu? 
SQL: SELECT "branding" FROM radio_station_data WHERE "location" = 'Cebu'