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<Paper uid="C88-1027">
  <Title>AUGMENTED X' -SCHEMES</Title>
  <Section position="3" start_page="0" end_page="0" type="metho">
    <SectionTitle>
1. Introduction
</SectionTitle>
    <Paragraph position="0"> Our approach represents a theoretical adaptation of Chomsky's subset of theories to the practical results obtained from and designed for SCD parsing strategY /Curteanu 1986/, /Curteanu 1987/. Mainly designed for Romanian, this strategy proved to be effective (with some peculiarities) also for English /Curteanu 1988b/. Let us consider the classical notations: X'-the second level of X projection, X''=XP-the third (top) level of projection for X=N,V,A,P. Consider also S , S' and PMP(X)=XP. We do not intend to discuss the problems of S''=PMP(S). We shall call X'-structures (middle level in the maximal projections) as &amp;quot;groups&amp;quot;: a group contains an overt or an empty head, wrapped by its specifiers (denoted Specif) and modifiers (denoted Modif) but without argument(s) (ds~ noted Arg). Thus X'=XG. N~N' is called Elem * oentary Noun Group (ENG). Tensed Verbal Group (TVG) is V' with the (morphologic or syntactic) feature of being tensed. Non-tensed Verbal Group (NVG) is V' with the (morphologic) feature of being untensed. ECP abbreviates the Empty Category Principle. We note that X'-struotures are naturally obtained by SCD rules.</Paragraph>
    <Paragraph position="1"> As Chomsky remarks &amp;quot;...the distinction between modifiers and arguments is notoriously difficult in certain cases&amp;quot; /Chomsky 1982 P.44/. Giving a general solution for the dis -tribution of the verbal nature modifiers , the kX'-schemes offer also the correct assign -ment of the functional dependencies between the head and its Modif, on the one hand, and the head and its Arg(s), on the other hand.</Paragraph>
    <Paragraph position="2"> The paper presents a PMP specification,which the adopted solutions are based on. It mainly says that not only V has suboategorization properties, but also some N and A (part of these verbal Ns or As being, in some languages, V). The new features of the AX'-schemes are: (1) an arbitrary number (n ~o) of Arg(s) are permitted, (2) the AP is always a Modlf ! and (3) the PP is always an Arg in AX -schemes</Paragraph>
  </Section>
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