user: Question: What is the highest Area (KM 2) for the Province of ontario, that has the Status of town, a Municipality of minto, and a Rank that's smaller than 84?
Columns: ['Rank', 'Municipality', 'Province', 'Status', 'Area (km 2 )']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'La Tuque', 'Quebec', 'Ville', 25104.59]
SQL:

assistant: SELECT MAX("Area (km 2 )") FROM "Table" WHERE "Province" = 'ontario' AND "Status" = 'town' AND "Municipality" = 'minto' AND "Rank" < 84.0;