The effect of this medicine is to alleviate the symptoms of a cold.

I am doing volunteer work to contribute to the community.

He was watching the situation as a detached observer.

His contribution led our project to success.

He became my guardian.

She is entrusted with the guardianship of the elderly.

She ended up having to watch over her sick grandmother.

In the Heian period, the court nobles played a crucial role in determining the country's policies.

What is the caliber of this gun?

He was terrified of living in a police state.