CREATE TABLE "longest_run_at_number_one" (
  "position" text,
  "artist" text,
  "single" text,
  "year" text,
  "weeks" text
);

Question: what is the single of the queen
SQL: SELECT "single" FROM "longest_run_at_number_one" WHERE "artist"='queen';

Question: what artist won in 1953
SQL: SELECT "artist" FROM "longest_run_at_number_one" WHERE "year"='1953';

Question: what year did david whitfield win
SQL: SELECT "year" FROM "longest_run_at_number_one" WHERE "artist"='david whitfield';