The Westminster systems are a type of parliamentary government.

Embedded systems are widely used in various industries.

The sub-systems of the spacecraft work together to ensure its proper functioning.

There are multiple coordinate systems used in navigation.

There are billions of star systems in the universe.

There are many planetary systems in our galaxy.

Intelligent systems are revolutionizing various industries.

The digestive systems of mammals are responsible for breaking down food and absorbing nutrients.

The respiratory systems of mammals are responsible for the exchange of oxygen and carbon dioxide.

There are various voting systems used around the world.