In class today, we were given a sentence to analyze by means of the SPOCA. After pondering this for quite some time, I find myself unsure of what is actually a subject complement and what is an adverbial here. The sentence is as follows:
"This is a different book from the one you recommended in your paper"
My original idea was that <a different book from the one you recommended> is the subject complement and that <in your paper> is an optional adverbial, but after discussing this with a friend I find myself uncertain of where the subject complement ends and the adverbial begins. My friend expressed total certainty in his analysis of <a different book> as the subject complement, and <from the one you recommended> and <in your paper> as two individual optional adverbials. Can anyone tell me if we're both completely clueless, or if one of us is onto something?
Thanks so much in advance!