Parts of the brain

A table links jobs of the body to the parts of the brain that do them, and another table links each part to its region. You will look things up and sort them.

The idea. Each job belongs to one part, and each part lies in the forebrain, the midbrain or the hindbrain.

Your tasks.

1. Finish part_of. It gives the part of the brain for a job.
2. Finish region_of. It gives the region for a job, by first finding the part.
3. Set hindbrain_jobs to the list of jobs whose part lies in the hindbrain, in the order of the table.