In Ghent in 2011, what was the rank-qualifying value when the score-qualifying value was 14.850
CREATE TABLE "competitive_history" (
  "year" real,
  "competition" text,
  "location" text,
  "apparatus" text,
  "rank_final" real,
  "score_final" text,
  "rank_qualifying" real,
  "score_qualifying" text
);
SELECT MAX("rank_qualifying") FROM "competitive_history" WHERE "location"='Ghent' AND "year"=2011 AND "score_qualifying"='14.850';