a...of prepositional phrases

"Awkwardness is not the only problem--nor is it the most serious. The sentence that ends with a long string of prepositional phrases often loses its focus" (Kolln 153).

Chapter Eight was incredibly enlightening to me because I very seldom think about adverbs. Inspired by the epigraph above, I am playing with Kolln's concept of "the proliferating prepositional phrase." I am most guilty of proliferation when writing about theory (dun, dun, dun). I hereby declare war of the word: of. Let's see this in action!

OLD
Walker’s poem, in its dual reliance on a collective Appalachian identity and a rejection of racial limits on that identity, relies on both a collective conception of Appalachian identity and a disruption of that concept.

In its redundancy, the focus of the sentence is lost. Kolln suggests that we pay close attention to which words/phrases are stressed in order to better understand what information is extraneous. Here, I am looking specifically at my repeated use of “of”: “a rejection of racial limits”… “a collective conception of Appalachian identity”… “a disruption of that concept.” First, how else might these phrases be phrased?

NEW
A rejection of racial limits… rejects racial limits
A collective conception of Appalachian identity… relies on the idea that Appalachian identity is collective and singular
A disruption of that concept… disrupts that concept

Not surprisingly, my revisions rely on strong verbs rather than “a…of” phrases.

NEW
Walker’s poem simultaneously reinforces and rejects the idea that Appalachian identity is collective and singular.

Of course, now I need a follow-up sentence which justifies that claim more thoroughly!