My room is twenty-five square meters.

My father is thirty-five years old.

This old house was built fifty-six years ago.

Gojuroku always encourages everyone with a smile.

My grandfather retired at the age of fifty-six.

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

This old radio uses a pentode.

Mr. Gohyakujo is my best friend.

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

Learning about the history of the Five Guards is very important for understanding ancient Chinese society.