What is the highest prominence in ft of the peak with a prominence in m less than 103?
CREATE TABLE "geography" (
  "name_of_peak" text,
  "height_m" real,
  "height_ft" real,
  "prominence_m" real,
  "prominence_ft" real,
  "nearest_higher_neighbor" text
);
SELECT MAX("prominence_ft") FROM "geography" WHERE "prominence_m"<103;