CREATE TABLE "superbike_race_2_classification" (
  "rider" text,
  "bike" text,
  "laps" real,
  "time" text,
  "grid" real
);

Question: What is the average laps for the +50.653 time?
SQL: SELECT AVG("laps") FROM "superbike_race_2_classification" WHERE "time"='+50.653';