This building is made of marble.

This ancient artifact is very valuable.

It is very interesting to learn about ancient history.

This diagram shows the progress of our project.

That topic is very interesting.

I attended the meeting as his surrogate.

This piece of art reflects the zeitgeist of its time.

We should protect the environment for the next generation.

She placed the candlestick on the table.

The cerebral cortex is an important part that controls thinking and emotions.