My grandfather is ninety-two years old.

My father is thirty-nine years old.

The nine-banded armadillo is known for its distinctive appearance.

Kumon Yume is my best friend.

The chances of him winning are a hundred to one.

My four treasures of the study are a fountain pen, a pencil, an eraser, and a ruler.

We have our wedding on the twenty-ninth day of the month.

My grandfather was born in the 1900's.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.