How many Females (%) have a State of karnataka, and Males Rank larger than 16?
CREATE TABLE "references" (
  "males_rank" real,
  "females_rank" real,
  "state" text,
  "hiv_awareness_malespct" real,
  "females_pct" real
);
SELECT COUNT("females_pct") FROM "references" WHERE "state"='karnataka' AND "males_rank">16;