Ichinoseki-san is my best friend.

Mr. Niseki is my best friend.

I live in Ichinoseki city.

We will swap seats in the class tomorrow.

This weir was built to regulate the water level of the river.

There are a lot of Japanese sweet flags growing in this pond.

I had the dental calculus removed at the dentist.

I will leave my seat temporarily.

I will leave my seat for a moment.

He has a strong sense of responsibility for his work.