What's the lowest Col ranked less than 6 with an Island of Molokaʻi?
CREATE TABLE "the_six_s_ultra_prominent_summit_of_the_" (
  "rank" real,
  "summit" text,
  "country" text,
  "island" text,
  "col_m" real
);
SELECT MIN("col_m") FROM "the_six_s_ultra_prominent_summit_of_the_" WHERE "island"='island of molokaʻi' AND "rank"<6;