What is the call sign for the station that uses the branding, mom's radio 101.5 tacloban?
CREATE TABLE "sbn_mom_s_radio_stations" (
  "branding" text,
  "callsign" text,
  "frequency" text,
  "power_k_w" text,
  "location" text
);
SELECT "callsign" FROM "sbn_mom_s_radio_stations" WHERE "branding"='Mom''s Radio 101.5 Tacloban';