CREATE TABLE "billy_elliot" (
  "status" text,
  "name" text,
  "first_performance" text,
  "last_performance" text,
  "style" text
);

Question: What was the status of joon-hyung park 박준형?
SQL: SELECT "status" FROM "billy_elliot" WHERE "name"='joon-hyung park 박준형';

Question: Who had a ballet style with original cast?
SQL: SELECT "name" FROM "billy_elliot" WHERE "style"='ballet' AND "status"='original cast';

Question: When was the first performance with a replacement cast?
SQL: SELECT "first_performance" FROM "billy_elliot" WHERE "status"='replacement cast';