What is the total number of delegate that have 4 counties carries and more than 1,903 state delegates?
CREATE TABLE "96pct_of_precincts_reporting" (
  "candidate" text,
  "state_delegate" real,
  "percentage" text,
  "delegates" real,
  "counties_carries" real
);
SELECT SUM("delegates") FROM "96pct_of_precincts_reporting" WHERE "counties_carries"=4 AND "state_delegate">'1,903';