Word nerds, take notice

Language Log has an interesting syntax discussion on "supplementary (non-restrictive) relative clauses with a present participle in place of a finite verb, whose subject is a partitive structure involving a relative pronoun, like 'both of whom', 'most of whom', 'few of whose parents', 'part of which'."

In English: It's sentences like this: "Ireland and Denmark, both of whom being heavily reliant on British trade, decided they would go wherever Britain went..."

Warning: not for the faint of heart.