One key element required to be a "Switzerland" is that it doesn't get invaded every ten minutes.

Another key element required to be a "Switzerland" is that you don't invade other countries every ten minutes.

New Yorkers possess the two essential elements required to create a great restaurant town: curiosity and criticism.

The exact number and type of elements required has occasionally changed from season to season.

There are basically four elements required before a system can even begin to be considered as a desktop publishing tool.

This is the way to obtain one of the seven elements required.

A stamp design includes several elements required for it to accomplish its purpose satisfactorily.

Nitrogen is an element required for growth by all biological systems.

I've checked over our medical stock, and I can very easily synthesize the elements required.

The choreography must include the elements required at the level that the pair chooses to do.