What is the total pld that has 36 points in 2007-08, and less than 55 points in 2008-09?
CREATE TABLE "relegation" (
  "team" text,
  "2006_07_pts" text,
  "2007_08_pts" text,
  "2008_09_pts" real,
  "total_pts" real,
  "total_pld" real
);
SELECT SUM("total_pld") FROM "relegation" WHERE "2007_08_pts"='36' AND "2008_09_pts"<55;