Mr. Sadayoka is my best friend.

Teisuke is my best friend.

Mr. Teisuke is my best friend.

I live in Baoding city.

His success is based on the assumption that he is a hard worker.

His composition is based on the cantus firmus.

Sadayoshi is my best friend.

This contract was established by the stipulation.

He spent a lot of time on the revision of his poetry.

He revised his poetry many times to create a perfect work.