Roman towns can be broadly grouped in two categories.

Controllers used for building automation can be grouped in 3 categories.

Utility customers are generally grouped in three categories - residential, industrial, and commercial.

The disorder was later found to have many different subtypes, now grouped in three major categories.

The scores were grouped in four categories, from below basic to advanced.

Similar services are grouped together in more than 500 categories.

We've grouped our 2006 winners in three categories hair, makeup and skin below.

Caches can be grouped in three categories - with and without a paper log, and events.

According to their subject matter the questions can be grouped in four categories.

Selected from 900 entries, the 49 winners are grouped in three categories.