Michael, Although I have no idea what cornflakes (Kellog) have to do with grammar, here are my two pfennigs worth: (1) If you were doing an old-fashioned Kellogg-Reed diagram of it, where would the intensifier "itself" go? As an appositive for "building" or as a modifier of "building"? Appositive, I'd say. Appositives (the building/itself) refer to the same referent, often they can do so each on their own (Michael/Kirschner), while modifiers give additional information on what the head refers to. (2) And what is the subjective complement in the sentence -- "stories" or "high"? I think it is "high" wqith "stories" modifying "high" and "four" modifying "stories." Right? The subject complement is what I call a 'special group' (for want of a better label), where 'high' is the head and 'four stories' is the attribute (old-fashioned) or modifier (old-fashioned too, although a bit more recent), which is a noun group (or noun phrase, if you prefer) with 'four' as the modifier of 'stories' - just as you said. This type of group is quite frequent: three miles long, 20 years young, etc. - the attribute expresses some kind of measurement. Burkhard Leuschner