My friend won the go tournament called Judan.

It is said that his fortune reaches a trillion billion yen.

There are twelve students in my class.

My younger sister is nineteen years old.

My younger sister is eighteen years old.

Everyone shouted 'Long live the Emperor!' all at once.

I work five days a week.

This old radio uses a pentode.

Pentathlon is a competition that tests both physical strength and technique.

He is always grumbling about trivial things, it's really annoying.