My father was a union member of the labor union for many years.

He is serving as a judge for this contest.

The jury system is a part of the Japanese judicial system.

He is known as an excellent criminal investigator.

The blue-collar workers are working hard in the factory.

The guard is standing at the entrance of the bank.

He is known as an excellent researcher.

His speech has persuasiveness.

The extent of his vocabulary strength indicates that he is an avid reader.

His ability to concentrate is astonishing.