user: Question: Name the total number of pop for ibaraki
Columns: ['Capital', 'Prefecture', 'Region', 'Island', 'Pop. ¹']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Akita', 'Akita', 'Tōhoku', 'Honshū', 327651.0]
SQL:

assistant: SELECT "Pop. ¹" FROM "Table" WHERE "Prefecture" = 'ibaraki';