text: import util
  import matplotlib.pyplot as plt
  
  
  def draw(folder, title, x, y):
      fname = util.DEFAULT_OUTPUT_FOLDER + folder + '/' + title + '.png'
      plt.plot(x, y, 'ro')
      plt.title(title)
      plt.xlabel('words')
      plt.ylabel('distance')
      plt.savefig(fname)
      plt.close()
  