He is studying computer science at a specialized school.

He couldn't say anything about issues outside of his field of expertise.

There are many different specialty stores in this town.

He is a specialist fool, with no interest in anything outside his field.

He is the administrator of this website.

We are working on improving personnel management.

The janitor cleans the building every day.

He lives in my brother's family's house.

This is my grandparents' house.

My house is near the mountains.