user: Question:  Which gatchaman has eagle riders as Lukan?
Columns: ['Gatchaman', 'Battle of the Planets', 'G-Force', 'Eagle Riders', 'OVA (Harmony Gold Dub)']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Dr. Kozaburo Nambu', 'Chief Anderson', 'Dr. Benjamin Brighthead', 'Dr. Thaddeus Keane', 'Dr. Kozaburo Nambu']
SQL:

assistant: SELECT "Gatchaman" FROM "Table" WHERE "Eagle Riders" = 'Lukan';