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<Paper uid="P02-1053">
  <Title>Thumbs Up or Thumbs Down? Semantic Orientation Applied to Unsupervised Classification of Reviews</Title>
  <Section position="3" start_page="0" end_page="0" type="intro">
    <SectionTitle>
2 Classifying Reviews
</SectionTitle>
    <Paragraph position="0"> The first step of the algorithm is to extract phrases containing adjectives or adverbs. Past work has demonstrated that adjectives are good indicators of subjective, evaluative sentences (Hatzivassiloglou</Paragraph>
  </Section>
class="xml-element"></Paper>