I obtained the natural coat certificate for my dog.

This ancient document describes the use of antimony.

He was working on that project round the clock.

Due to his somnambulism, he may walk around unconsciously in the middle of the night.

He is working round the clock.

He is a perfectionist, so he is very strict about his work.

He publicly acknowledged that he is a homosexual.

He always looks at things like a pessimist.

He is always an optimist, believing in a bright future even in difficult situations.

He identifies himself as an atheist.