Mr. Ohtaka is my best friend.

We played karuta at the New Year's party.

He was drawing a character of a yellow person.

The next census will be conducted next year.

Demography is a part of social science that studies the structure, evolution, and problems of human population.

Looking at the population pyramid, you can see that this country is aging.

We played a match on the artificial turf soccer field.

This park was completely artificially made.

Artificial intelligence will be at the center of future technology.

This park has a man-made lake.