He is working in a silver mine.

This ore is very rare and valuable.

He holds a chair at the university.

The government has decided to reshuffle the cabinet.

I am researching the history of the old name, San Francisco.

He tends to be particular about details.

He always works by being particular about the details.

He is known for his filial piety towards his parents.

He is a very filial son to his parents.

Various advertisements are posted in this magazine.