His memory is like an elephant's.

In old Japan, elephants were considered very rare animals.

His work is considered a symbol of peace.

This river is very long.

His strong point is his sincerity.

Mr. Nagi is my neighbor.

He is the chief of our team.

I have been to Nagasaki.

After studying for a long time, he got tired and went to sleep.

Mr. Nagi is my best friend.