In this quote by Charles Simic what is the prepositional phrase Poetry an orphan of silence The words never quite equal experience behind them?

Here's why:

* Prepositional phrases start with a preposition (like "of", "in", "on", "by", etc.) and are followed by a noun or pronoun (the object of the preposition).

* In this case, "of" is the preposition and "silence" is the object of the preposition.

The entire phrase "of silence" modifies the noun "orphan" and tells us what kind of orphan poetry is.

Let me know if you'd like to break down other parts of the quote!