The Panama Canal is one of the world's important transportation routes.

I like the unique texture of flying fish roe sushi.

I am studying the philosophy of Guanzi.

There is a newly born calf on my farm.

The study of nucleons is an important field in science.

This math problem needs to be solved using the correct operator.

Mamiko is my best friend.

What is the extension of this file?

Jikako is my best friend.

Namiko is my best friend.