The International Atomic Energy Agency is an international organization that promotes the peaceful use of nuclear energy.

The World Trade Organization is an important organization that sets the rules for international trade.

The World Health Organization is working to improve public health worldwide.

My grandfather used to be a steam locomotive driver.

I commute to work every day using public transportation.

He received training to handle a heavy machine gun.

He is good at handling a light machine gun.

The history of the Empire of Japan is very interesting.

Old Church Slavonic is the oldest recorded language of the Slavic group.

Old Church Slavonic is the first language written by the Slavs.