What he did can't be undone.

What he did was an irretrievable mistake.

He tidied up the room quickly.

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.

Everyone, please have a good new year.

It's a beautiful night with the moon.

There is a small mound in the park.

There is a new desk in my room.