Fourteen yachts, divided into three classes, are competing.
Synarthroses are divided into three classes: fibrous, symphysis, and cartilaginous.
Figure 14.1: Vector space classification into three classes.
They can be separated into three classes with distinct physical and/or chemical properties.
Mail was formally divided into three classes in 1863, and a fourth was added in 1879.
Participants learned about 15 novel "satellite" objects organized into three classes (Fig. 1a).
Viking society was stratified into three classes: jarls, karls, and thralls.
They trace descent patrilineally and divide themselves into three classes: landlords, farmers, and watchmen.
The tunicates are divided into three classes: Ascidiacea (ascidians, or sea squirts), Appendicularia (Larvacea), and Thaliacea.
Bryozoans are separated into three classes: Phylactolaemata (freshwater dwelling); Stenolaemata (marine); and Gymnolaemata (mostly marine).
Under Illumina's certificate of incorporation, its nine directors are divided into three classes.
