For any transformation which is sufficiently diversified in application to be of any interest, the speaker-hearer's linguistic intuition is to be regarded as a general convention regarding the forms of the grammar. In the discussion of resumptive pronouns following (81), most of the methodological work in modern linguistics suffices to account for a corpus of utterance tokens upon which conformity has been defined by the paired utterance test. Nevertheless, any associated supporting element can be defined in such a way as to impose the requirement that branching is not tolerated within the dominance scope of a complex symbol. Note that relational information does not readily tolerate an abstract underlying order. From C1, it follows that the earlier discussion of deviance cannot be arbitrary in the ultimate standard that determines the accuracy of any proposed grammar.
see also: WikiPedia -- Chomskybot