Sentence examples for different purposes from inspiring English sources

Do they have different purposes?

Different models serve different purposes.

Yet capitals have different purposes.

Different sizes are used for different purposes.

They have two different purposes.

Different data are used for different purposes.

This mutual awareness serves two different purposes.

To teens, Twitter and Facebook have different purposes.

They are stored separately and used for different purposes.

But they were originally intended for different purposes.

Do different types of cameras have different purposes?