How fast was the speed during the record set at Coniston Water that was piloted by Malcolm Campbell?
CREATE TABLE "record_holders" (
  "speed" text,
  "craft" text,
  "pilot_s" text,
  "location" text,
  "date" text
);
SELECT "speed" FROM "record_holders" WHERE "location"='coniston water' AND "pilot_s"='malcolm campbell';