Gender roles are an important element in defining individual behavior in society.

His role is to fulfill his responsibilities as a leader.

It is important to understand the importance of health.

His body is very healthy.

He made three robots.

He exercises his body every day.

His body looks like that of an athlete.

The concept of the absolute complement plays an important role in set theory.

Reading this supplementary explanation will deepen your understanding.

What is the complement of this sentence?