This book is the first volume of a trilogy.

My room is on top of the building.

We will make a decision after listening to his opinion.

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.

It is important to understand the importance of health.

Please use the emergency stairs in case of a fire.

Due to the earthquake, the city declared a state of emergency.

I had a picnic at Ueno Park.