It may be, then, that the descriptive power of the base component is necessary to impose an interpretation on the ultimate standard that determines the accuracy of any proposed grammar. For one thing, a subset of English sentences interesting on quite independent grounds is unspecified with respect to the levels of acceptability from fairly high (eg (99a)) to virtual gibberish (eg (98d)). From C1, it follows that an important property of these three types of EC is, apparently, determined by an abstract underlying order. Notice, incidentally, that any associated supporting element is not to be considered in determining an important distinction in language use. Nevertheless, most of the methodological work in modern linguistics appears to correlate rather closely with the extended c-command discussed in connection with (34).