class_docstr: Corpus reader for the nombank corpus, which augments the Penn
  Treebank with information about the predicate argument structure
  of every noun instance.  The corpus consists of two parts: the
  predicate-argument annotations themselves, and a set of "frameset
  files" which define the argument labels used by the annotations,
  on a per-noun basis.  Each "frameset file" contains one or more
  predicates, such as ``'turn'`` or ``'turn_on'``, each of which is
  divided into coarse-grained word senses called "rolesets".  For
  each "roleset", the frameset file provides descriptions of the
  argument roles, along with examples.
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docstr: :return: a corpus view that acts as a list of strings, one for
      each line in the predicate-argument annotation file.
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code: def lines(self):
      """
      :return: a corpus view that acts as a list of strings, one for
          each line in the predicate-argument annotation file.
      """
      return StreamBackedCorpusView(
          self.abspath(self._nomfile),
          read_line_block,
          encoding=self.encoding(self._nomfile),
      )
  
imports: from functools import total_ordering
  from xml.etree import ElementTree
  from nltk.corpus.reader.api import *
  from nltk.corpus.reader.util import *
  from nltk.internals import raise_unorderable_types
  from nltk.tree import Tree
label_desc: Use image node_id 3 for calling the NombankCorpusReader obj's underlying member method code with example usage: obj.lines() and returns: StreamBackedCorpusView