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<Paper uid="J98-2005">
  <Title>Squibs and Discussions Estimation of Probabilistic Context-Free Grammars I</Title>
  <Section position="5" start_page="303" end_page="303" type="ackno">
    <SectionTitle>
Acknowledgments
</SectionTitle>
    <Paragraph position="0"> We are indebted to Mark Johnson for encouraging us to look at this problem in the first place, and for much good advice along the way. This work was supported by the Army Research Office (DAAL03-92-G-0115), the National Science Foundation (DMS-9217655), and the Office of Naval Research (N00014-96-1-0647).</Paragraph>
  </Section>
class="xml-element"></Paper>