Hossein Ojaghi participated in what semifinal.
CREATE TABLE table_name_4 (semifinal VARCHAR, athlete VARCHAR)
SELECT semifinal FROM table_name_4 WHERE athlete = "hossein ojaghi"
### Context: CREATE TABLE table_name_4 (semifinal VARCHAR, athlete VARCHAR) ### Question: Hossein Ojaghi participated in what semifinal. ### Answer: SELECT semifinal FROM table_name_4 WHERE athlete = "hossein ojaghi"