Mr. Gohyakujo is my best friend.

Yuriko is my best friend.

He started a business without a plan, forgetting the lesson of 'peach and chestnut seeds take three years to bear fruit, persimmons eight years.'

He succeeded in a difficult project with the spirit of 'ishi no ue ni mo sannen', which means great works are performed by perseverance.

He is known as an expert in subcritical nuclear experiments.

The anterior scalene muscle is part of the neck muscles and plays a role in assisting with respiration.

My grandfather was born in the 1900's.

The tobi-kashira-mukade is a very rare creature.

I like memorizing the Hyakunin Isshu.

It's difficult to memorize the Hyakunin Isshu.