He is a sincere person, so he never lies.

I'm always moved by his sincerity.

We discussed for hours to come to a mutual understanding.

He is an alumnus of this university.

He is in command of the team.

He has the ability to command the troops.

He graduated from high school and is currently working at a local company.

He is a college graduate and a very excellent engineer.

She is taking care of the child.

That child is my friend.