user: Question: With a Division II of Portsmouth, what is the Division IV?
Columns: ['Year', 'Division I', 'Division II', 'Division III', 'Division IV', 'Division V']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [2011.0, 'Exeter', 'Bishop Guertin', 'Portsmouth', 'Trinity', 'St. Thomas']
SQL:

assistant: SELECT "Division IV" FROM "Table" WHERE "Division III" = 'Portsmouth';