A polytope is an important concept in geometry.

He is interested in American politics.

His music composition is very unique.

He is deeply studying about the counterpoint in music.

In this experiment, we will use the polymerase chain reaction.

His potential is infinite.

He sent a message using the telegraph code.

We plan to post advertisements for new products.

He is known as an excellent reporter.

The reporter is investigating the details of the incident.