He is feeling lonely.

In this museum, lithographs from the 19th century are on display.

This stone slab is an ancient artifact.

My mother underwent surgery for gallstones.

He is drawing a picture on a slate.

This building is made of marble.

He started a fire using a flint.

The capacity of this bottle is 500 milliliters.

I am responsible for the contents of this document.

We are friends who share joy and sorrow.