Both are grouped into four classes: process, information, actors, technology.

However, they are normally grouped into four classes, based on the conjugational system of Gothic.

There are many different kinds of forging processes available, however they can be grouped into three main classes:

A new system of classification was then adopted in which inmates were grouped into sixteen classes under three broad categories.

The Semaphorins are grouped into eight major classes based on structure and phylogentic tree analyses.

There are nine of these, which can be grouped into two classes by tree shape.

In general, corticosteroids are grouped into four classes, based on chemical structure.

Cars were grouped into three classes based on engine capacity:

The harmonization of vehicles grouped into five classes is very logical.

The student body has fewer than 200 children in kindergarten through eighth grade; however, the students are grouped into seven age-ranged classes.