I used cyclononadecane in an organic chemistry experiment.

This compound has cyclohexadecane as its main component.

This compound contains cyclotetradecane.

This compound mainly consists of cyclotridecane.

I went to the station through the underground passageway.

The children are enjoying playing in the mud at the park.

Mr. Ro is eating okonomiyaki.

He bought a car for six million yen.

There is not a single cloud in the sky.

I go shopping at the supermarket every Saturday.