The subject table below is an adaptation of the Pima Indians Diabetes Database. The subject$\_$id

and city$\_$id columns were added to the original dataset $($table$).$

Also, subjects$\_$old, subjects$\_$temp, cities, and values tables were also added so we can apply

some operations to them.

To know the meaning of each column in the original dataset, please see number $7$ in the Pima

Indians Diabetes Database documentation. This will also be helpful for copying $/$ pasting your

answers