user: Question: Which Administrative district has a Pre-1009 province of Gwannae -do and a Post-1009 province of Seohae -do?
Columns: ['Province of Silla', 'Administrative district', 'Pre-1009 province', 'Post-1009 province', 'Modern equivalent']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Hanju', 'Gyeonggi ( 京畿 )', 'Gyeonggi', 'Gyeonggi', 'Kaesŏng']
SQL:

assistant: SELECT "Administrative district" FROM "Table" WHERE "Pre-1009 province" = 'Gwannae -do' AND "Post-1009 province" = 'Seohae -do';