CREATE TABLE table_40155 ("Branding" CLOB, "Callsign" CLOB, "Frequency" CLOB, "Power  ( kW ) " CLOB, "Coverage" CLOB)

What is the branding for the station with a frequency of 93.1mhz and a callsign of DWRX?
SELECT "Branding" FROM table_40155 WHERE "Frequency" = '93.1mhz' AND "Callsign" = 'dwrx'
SELECT "Branding" FROM "table_40155" WHERE "Callsign" = 'dwrx' AND "Frequency" = '93.1mhz'