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<Paper uid="W98-0601">
  <Title>The representation of syntactically unexpressed com to nouns</Title>
  <Section position="7" start_page="7" end_page="7" type="concl">
    <SectionTitle>
5 Conclusion
</SectionTitle>
    <Paragraph position="0"> In this paper we have discussed the representation of the semantic structure of nominals having complex argument structures. In particular we have proposed a treatment for syntactically unexpressed optional complements of nouns. We have shown the relevance of the representation of such relations (based on discourse factors) and have developed a treatment that takes into account both the syntactic and the semantic aspects of the phenomenon. In particular we have shown that optional complements of deverbal nominalizations and other classes of nouns (in addition of some optional complements to verbs) can be nicely dealt with by using Pustejovsky's D- and S-Args being implemented as thematically bound adjuncts in an HPSG framework semantically enriched fop lowing the lines in GL. This is possible mainly 14This restriction is indicated by the function &amp;quot;S&amp;quot; (i.e., specific) in the feature structure below. We are currently working on an implementation of this restriction.</Paragraph>
    <Paragraph position="1"> thanks to the interface role between syntax and lexical semantic information that is performed by the argument structure level. Our proposal has been implemented by using LKB devices which allow a general and systematic treatment.</Paragraph>
  </Section>
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