class_docstr: wordnum:height*wordnum:height*...
  wordnum:height,
class_docstr_tok: ["wordnum",":","height","*","wordnum",":","height","*","...","wordnum",":","height",","]
code: def __str__(self):
      return f"{self.wordnum}:{self.height}"
  
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 3 for calling the PropbankTreePointer obj's underlying member method code with example usage: obj.__str__() and returns: self, str, self