user: Question: Which stadium has FC Seoul?
Columns: ['Club', 'Head Coach', 'City', 'Stadium', '2007 season']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ["Busan I'Park", 'Hwang Sun-Hong', 'Busan', 'Busan Asiad Stadium', '13th in League']
SQL:

assistant: SELECT "Stadium" FROM "Table" WHERE "Club" = 'FC Seoul';