Thanks for the suggestion. I’ll try other sites to see whether I can gather more information sufficient for a 15-page paper.
Ray...my deepest sympathies. Would a highly astute 8-pager not suffice? Would a 20-page piece of rubbish get you an A+?
I sometimes despair of schools.
Might I suggest focusing on parataxis, discussing its common use in English in the peculiar form of a tag question (It's a pretty cool topic, isn't it?), why this formation might be more common in certain English dialects than in others, and how similar semantic structures are handled quite differently in other closely related Germanic languages*? You could also discuss the oft-ignored semicolon as it relates to parallel structures. If you're short a page or two, you could finish up with an aside on the popularity of the sentence fragment and whether or not it qualifies as a parataxis. Or not.
That should do it for 15 pages, as long as you double-space.
* I'm thinking of Swedish 'eller hur?' or the German 'nicht wahr?' but there are surely lots of other comparisons.