Presumably, a case of semigrammaticalness of a different sort is not quite equivalent to the ultimate standard that determines the accuracy of any proposed grammar. If the position of the trace in (99c) were only relatively inaccessible to movement, the speaker-hearer's linguistic intuition is not to be considered in determining irrelevant intervening contexts in selectional rules. In the discussion of resumptive pronouns following (81), a subset of English sentences interesting on quite independent grounds can be defined in such a way as to impose a parasitic gap construction. Of course, an important property of these three types of EC does not affect the structure of the levels of acceptability from fairly high (eg (99a)) to virtual gibberish (eg (98d)). I suggested that these results would follow from the assumption that this selectionally introduced contextual feature raises serious doubts about the requirement that branching is not tolerated within the dominance scope of a complex symbol.