Each artist has incorporated a unique element of humor in his or her work.

A set is simply an ascending container of unique elements.

A death spiral is an element unique to pair skating.

The job of each clerical worker therefore has unique elements.

The unique initial element in a hierarchy will be called the 'origin'.

Whereas souls are the personal element unique to each individual.

While the basic concept is inspired by other games of the same genre, there are several unique elements.

The animated title sequence was another unique element of the series.

We investigated both the common and the unique elements of these various images.

It does however transcend many of these and contains various unique elements.