I went to the dentist because my back teeth hurt.

A crow is perching on the roof.

He is planning to build a new house.

He went out to the garden with a bucket.

Mr. Kajioka is my best friend.

He often reads books on the occult.

Mr. Tanioku is my best friend.

They were arrested for having sex in the open air in the park.

Please don't fuss over me, I can do it myself.

Octadecene plays an important role in organic chemistry.