* Pronouns are words that replace nouns. Examples: he, she, it, they, we, you, I, mine, yours, his, hers, theirs, etc.
* Personal pronouns refer to specific people or things (e.g., he, she, it).
* Intensive pronouns emphasize a noun or pronoun already in the sentence. They are formed by adding "-self" or "-selves" to a personal pronoun (e.g., myself, herself, themselves).
The phrase "of A" doesn't fit any of these categories. It's part of a prepositional phrase ("of A"), which functions as an adjective phrase modifying a noun.
If you can provide the full sentence, I can help you analyze its grammatical structure and identify the type of pronoun (if any) that is present.