Hexane is a compound often used in organic chemistry.

They are referred to as a pair of matchless things at school.

He hung a picture on the eastern wall.

This building is surrounded by firewalls.

The piece of jade used in ancient China, known as 'bi', is considered to be very valuable.

He is thought to be a greedy person.

The late autumn wind is rustling the leaves of the trees.

His words were profound.

He was so profound that it was difficult for us to understand his thoughts.

He has a beneficent heart.