We did volunteer work in the area hit by a disaster.

Mr. Ariji is my best friend.

This area used to be a concession territory.

In ancient Chinese astronomy, they used the earthly branches to express time and direction.

He is working as an agent for the Central Intelligence Agency.

Geographic Information Systems are very useful tools for map making and spatial data analysis.

We will create a map using geographical information.

He is active as the chief information officer of our company.

They launched a surface-to-air missile.

My hometown is a prefecture-level city.