Natural language understanding is an important field of artificial intelligence.

We traveled to the southern island for summer vacation.

There are a lot of cheap drinks at this bar.

We always look for cheap hotels to stay in while traveling.

Yoshihito is my best friend.

Koujin is my best friend.

This restaurant is delicious and cheap.

His name is To, he is a very gentle person.

Yasushi loves peace.

He eats lunch late in the afternoon.