code: def words_graph():
      """Return the words example graph from the Stanford GraphBase"""
      fh = gzip.open("words_dat.txt.gz", "r")
      words = set()
      for line in fh.readlines():
          line = line.decode()
          if line.startswith("*"):
              continue
          w = str(line[0:5])
          words.add(w)
      return generate_graph(words)
  
imports: import gzip
  from string import ascii_lowercase
  import matplotlib.pyplot
  import networkx
label_desc: Use image node_id 2 for calling a global function with example usage: words_graph() and returns: generate_graph