Proper nouns indicate a blank person place or thing ?

Proper nouns usually understood as a noun that is capitalized . In order to be a proper noun ,like any other noun, the word must be a person place or thing. Proper nouns no matter what, are in a sentence and have is capitalized

A proper noun indicates a specific person, place or thing.  For example, Ronald Macdonald, New York City or Tiffany lamp. They have to be capitalized in the sentence.

Ifound this on google “use commas to separate two or more coordinate adjectives that describe the same noun. be sure never to add an extra comma between the final adjective and the noun itself or to use commas with non-coordinate adjectives.” i hope this you for what your looking for