This is a property of type Has type::Page. Allowed values for this property are: Allows value::Subdivision G 1 Allows value::Subdivision G 2 Allows value::Subdivision G 3 Allows value::Subdivision G 4 Allows value::Subdivision 10 Allows value::Subdivision 11 Allows value::Subdivision 12 Allows value::Subdivision 20 Allows value::Subdivision 21