He wrote a caption for the picture.

I draw my eyebrows using an eyebrow pencil.

We will use pentane in this chemistry experiment.

My new fountain pen is easy to write with.

I lost my mechanical pencil, so I'm going to buy a new one.

My new pen tablet is very easy to use.

Propene plays an important role in organic chemistry.

I used pentyne in an organic chemistry experiment.

He was writing a letter with an old-fashioned quill pen.

We respect Japanese culture.