What's the rank for a team that has a percentage of 56% and a loss smaller than 4?
CREATE TABLE "current_standings" (
  "rank" real,
  "team" text,
  "loss" real,
  "sets_won" real,
  "sets_lost" real,
  "percentage" text
);
SELECT AVG("rank") FROM "current_standings" WHERE "percentage"='56%' AND "loss"<4;