He proposed to her in a romantic place.

He conducted a demonstration of the new product.

I sent a letter by airmail.

She is a true lady.

This data is suitable for cluster analysis.

I belong to a new agency.

She bought new boots.

Japanese culture is very popular all over the world.

Since it's raining, we will play tennis on the indoor court.

He is an excellent hacker who has breached many security systems.