What's the worst dance of jive dancer(s)?
CREATE TABLE "highest_and_lowest_scoring_performances" (
  "dance" text,
  "best_dancer_s" text,
  "best_score" real,
  "worst_dancer_s" text,
  "worst_score" real
);
SELECT "worst_dancer_s" FROM "highest_and_lowest_scoring_performances" WHERE "dance"='jive';