ABSTRACT
In the Extended Standard Theory of transformational grammar, the substitution of the preterminal symbols (N, Adj, V, etc.) in the deep structure with lexical formatives (i.e. words) from the lexicon3. The final chain of derivation over which the semantically neutral transformations operate, is attained through lexical insertion rules. In contrast to Chomsky’s lexical insertion rules in the basic part of the grammar, the adherents of generative se mantics advocate substituting the semantic primitives with lexical units before and after the application of transformations.
