NOT A TEACHER
Hello, FreeZiebel:
Thank you so much for your fascinating question. May I add my two bits to the great answers that you have already received?
When you get time, I think that you would greatly benefit by googling the words "Non-appositive noun phrase" and then clicking on the "books" section. The first result should be A Student's Introduction to English Grammar by two respected grammarians, Rodney Huddleston and Geoffrey Pullum.
On page 96, they discuss post-head modifiers (modifiers that come after the noun).
The two scholars say that the following examples are appositive noun phrases:
the opera "Carmen"
our friend the mayor
my wife Lucy
They then say that the following are non-appositive noun phrases:
a woman my age
someone your own size
a rug this colour
They explain the BIG difference between the two classes. I shall not try to explain here, for I do not wish to accidentally give inaccurate information. We non-teachers are warned to be very cautious before commenting.
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Then I found (on the Web) a lesson from Southern Illinois University:
I stared at a woman.
The woman was my age.
Combined into: I stared at a woman who was my age.
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Then (again on the Web), I got this from Michigan State University:
He was a young man.
He was about my age.
Combined into: He was a young man about my age.
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I have presented the above information for your consideration. I do not know who is "right" and who is "wrong."
HAVE A NICE DAY!