He proposed a new theory about quantum mechanics.

Thanks to his serendipity, we were able to find a new business opportunity.

Intermolecular forces are an important factor in determining the properties of a substance.

Katoriki is a rare name, isn't it?

He gave me the cold shoulder.

The family crest of my house is Kago-me-mon.

He is known as a comic character.

Their problem was clearly visible to me, a bystander.

Her problem is obvious to me, who is looking at it from an outsider's perspective.

He was wearing a ski mask to protect his face from the cold.