class_docstr: Check properties of an ongoing discourse.
class_docstr_tok: ["Check","properties","of","an","ongoing","discourse","."]
docstr: Display the list of sentences in the current discourse.
code: def sentences(self):
      """
      Display the list of sentences in the current discourse.
      """
      for id in sorted(self._sentences):
          print(f"{id}: {self._sentences[id]}")
  
imports: import os
  from abc import ABCMeta, abstractmethod
  from functools import reduce
  from operator import add, and_
  from nltk.data import show_cfg
  from nltk.inference.mace import MaceCommand
  from nltk.inference.prover9 import Prover9Command
  from nltk.parse import load_parser
  from nltk.parse.malt import MaltParser
  from nltk.sem.drt import AnaphoraResolutionException, resolve_anaphora
  from nltk.sem.glue import DrtGlue
  from nltk.sem.logic import Expression
  from nltk.tag import RegexpTagger
label_desc: Use image node_id 2 for calling the DiscourseTester obj's underlying member method code with example usage: obj.sentences() without return types