CREATE TABLE "s_rebroadcaster_of_cbf_fm" (
  "city_of_license" text,
  "identifier" text,
  "frequency" text,
  "power" text,
  "class" text,
  "rec_net" text
);

Question: What's the class when the identifier is cbf-fm-14?
SQL: SELECT "class" FROM "s_rebroadcaster_of_cbf_fm" WHERE "identifier"='cbf-fm-14';

Question: What's the frequency when the identifier is cbf-fm-9?
SQL: SELECT "frequency" FROM "s_rebroadcaster_of_cbf_fm" WHERE "identifier"='cbf-fm-9';

Question: What's the RECNet when the identifier is cbf-fm-20?
SQL: SELECT "rec_net" FROM "s_rebroadcaster_of_cbf_fm" WHERE "identifier"='cbf-fm-20';

Question: What's the RECNet when the power is 199 watts?
SQL: SELECT "rec_net" FROM "s_rebroadcaster_of_cbf_fm" WHERE "power"='199 watts';

Question: What's the frequency when the identifier is cbf-fm-14 having a class of A?
SQL: SELECT "frequency" FROM "s_rebroadcaster_of_cbf_fm" WHERE "class"='a' AND "identifier"='cbf-fm-14';