code: def demo():
      # This is out-of-date:
      abc.demo()
      brown.demo()
      #    chat80.demo()
      cmudict.demo()
      conll2000.demo()
      conll2002.demo()
      genesis.demo()
      gutenberg.demo()
      ieer.demo()
      inaugural.demo()
      indian.demo()
      names.demo()
      ppattach.demo()
      senseval.demo()
      shakespeare.demo()
      sinica_treebank.demo()
      state_union.demo()
      stopwords.demo()
      timit.demo()
      toolbox.demo()
      treebank.demo()
      udhr.demo()
      webtext.demo()
      words.demo()
  
imports: import re
  from nltk.corpus.reader import *
  from nltk.corpus.util import LazyCorpusLoader
  from nltk.tokenize import RegexpTokenizer
label_desc: Use image node_id 1 for calling a global function with example usage: demo() without return types