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<Paper uid="E87-1034">
  <Title>DISCONTINUOUS CONSTITUENTS IN TREES, RULES, AND PARSING</Title>
  <Section position="6" start_page="209" end_page="209" type="concl">
    <SectionTitle>
NOTES
</SectionTitle>
    <Paragraph position="0"> I) In this paper, sharing a constituent has been taken simply as common domination of that constituent. An interesting issue is whether we should take sharing a constituent to include the following situation. A node x dominates a constituent z, while another node y is related to z in such a way that z is dominated by a node w which is internal context for y. (And still more complex definitions of constituent sharing are conceivable within the framework of DPSG.) Decisions on this point turn out to have far-reaching consequences for the generative capacity of DPSG. With the simple notion of sharing used in this paper, it is easily proved that DPSG is more powerful than context-free PSG, while further restrictions on the precedence relation in terms of constituent sharing may have the effect of making DPSG weakly equivalent to context-free grammar.</Paragraph>
    <Paragraph position="1"> 2) For applications of DPSG and a predecessor, which was called &amp;quot;augmented phrase-construction grammar&amp;quot; in syntactic/semantic analysis and automatic generation of sentences, the reader is referred to Bunt (1985; 1987).</Paragraph>
  </Section>
class="xml-element"></Paper>