What is the time recorded by David Salom on his Yamaha yzf-r6 when his grid was larger than 1?
CREATE TABLE "supersport_race_classification" (
  "rider" text,
  "bike" text,
  "laps" real,
  "time" text,
  "grid" real
);
SELECT "time" FROM "supersport_race_classification" WHERE "bike"='yamaha yzf-r6' AND "grid">1 AND "rider"='david salom';