Answers:
A proper noun is used to specify which common noun you are referring too.
Explanation:
1) A persons name (such as Jamie, Ethan, etc)
2) the specific name of a place (North mall, etc)
3) proper name of the object ( Rayban sunglasses, etc)
4) proper name of the object ( Running shoes, etc)
5) Name of the establishment or item ( Mcdonald’s, Big Mac, etc)