He received the letter challenging him to a duel and began preparing for the duel.

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

His role is to fulfill his responsibilities as a leader.

The crown prince is a symbol of the people's hope and respect.

He is said to be a member of the Princelings in China.

It is important to understand the importance of health.

I am amazed at the advancement of near-future technology.

He claims to be a time traveller.

He has a deep interest in Futurist art.

We swear to be friends forever.