Table: billy_eliot_casts_2
Columns: status
name
first_performance
last_performance
style

Question: What was the status of joon-hyung park 박준형?
SQL: SELECT "status" FROM billy_eliot_casts_2 WHERE "name" = 'joon-hyung park 박준형'

Question: Who had a ballet style with original cast?
SQL: SELECT "name" FROM billy_eliot_casts_2 WHERE "style" = 'ballet' AND "status" = 'original cast'

Question: When was the first performance with a replacement cast?
SQL: SELECT "first_performance" FROM billy_eliot_casts_2 WHERE "status" = 'replacement cast'