Asking for a(n international) friend. She has gotten into and is weeks away from completing her masters at a public university in the US (California). She is now applying to PhD programs and wondering if it is acceptable to reuse part of her personal statement and statement of purpose that she wrote to get accepted into the masters program for her PhD application at the same institution. Obviously, she would not use the whole thing, as she has work and experience from her masters to talk about, but certain parts are still entirely true and are already well written.
Would this count as plagiarism or otherwise be inadvisable?