The owner of the company was a very rich man.
Example sentence - I would like to contact the owner of the company to interview her for my thesis.
The boarding house is managed by the owner and one factotum.
the land owner died
That is actually not a sentence, but a phrase (fragment). Owner would be the simple subject if it had a predicate, though.
To by a new house you must have a contractual with the owner.
"The store owner discussed the position with the applicant."
The dog licked its owner with its slavering jaws.
the owner was able to scrimp their restaurant.
How would you use theory in a sentence
The web page had one hyperlink for contacting the owner.
The rabbit would bounce up and down when he saw his owner approaching with a carrot.As a child, Kara loved to bounce on the bed.
The owner can evict a person if he/she does not pay it's rent.