He is a very excellent performer.

After the accident, he learned to use an artificial limb.

Mr. Yamagishi is my best friend.

Formic acid is a compound often used in organic chemistry.

Formate is an important compound in organic chemistry.

He escaped from the police with a perfect disguise.

My sister-in-law is a doctor.

My parent-in-law is very kind.

I will head to Tokyo by night train.

My grandmother takes out her dentures every night before she goes to bed.