code: def parse(s, parse_fileid_xform=None, parse_corpus=None):
      pieces = s.split()
      if len(pieces) < 7:
          raise ValueError("Badly formatted propbank line: %r" % s)
  
      # Divide the line into its basic pieces.
      (fileid, sentnum, wordnum, tagger, roleset, inflection) = pieces[
          :6
      ]
      rel = [p for p in pieces[6:] if p.endswith("-rel")]
      args = [p for p in pieces[6:] if not p.endswith("-rel")]
      if len(rel) != 1:
          raise ValueError("Badly formatted propbank line: %r" % s)
  
      # Apply the fileid selector, if any.
      if parse_fileid_xform is not None:
          fileid = parse_fileid_xform(fileid)
  
      # Convert sentence & word numbers to ints.
      sentnum = int(sentnum)
      wordnum = int(wordnum)
  
      # Parse the inflection
      inflection = PropbankInflection.parse(inflection)
  
      # Parse the predicate location.
      predicate = PropbankTreePointer.parse(rel[0][:-4])
  
      # Parse the arguments.
      arguments = []
      for arg in args:
          argloc, argid = arg.split("-", 1)
          arguments.append((PropbankTreePointer.parse(argloc), argid))
  
      # Put it all together.
      return PropbankInstance(
          fileid,
          sentnum,
          wordnum,
          tagger,
          roleset,
          inflection,
          predicate,
          arguments,
          parse_corpus,
      )
  
imports: import re
  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 8 for calling the PropbankInstance obj's underlying member method code with example usage: obj.parse(s, parse_fileid_xform, parse_corpus) and returns: PropbankInstance