What ist he entrant later than 1963 with an eagle MK1 chassis?
CREATE TABLE "formula_one_world_championship_results" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "pts" text
);
SELECT "entrant" FROM "formula_one_world_championship_results" WHERE "year">1963 AND "chassis"='eagle mk1';