Comparing these examples with their parasitic gap counterparts in (96) and (97), we see that a descriptively adequate grammar does not affect the structure of the ultimate standard that determines the accuracy of any proposed grammar. In the discussion of resumptive pronouns following (81), most of the methodological work in modern linguistics is not to be considered in determining an important distinction in language use. For one thing, any associated supporting element is necessary to impose an interpretation on an abstract underlying order. Of course, the natural general principle that will subsume this case is unspecified with respect to the strong generative capacity of the theory. Conversely, the systematic use of complex symbols is, apparently, determined by the traditional practice of grammarians.
see also: WikiPedia -- Chomskybot