please read the forum rules-- no OG questions are allowed here. your "problem 2" was an OG item, verbatim.
if you want to ask a question about an OG item, please do so without quoting the text of the problem. (you can give an edition # and problem #.)
if you need to illustrate a structure, please come up with an example(s) in your own words. (incidentally, creating your own examples is the best way to learn these things anyway, so there's a side benefit!)
thanks.