message: Fix problems with query graph generation
diff: import json
  def generate(input_file, output_file):
  + global current_tone
  with open(input_file) as f:
  text = f.read()
  # we only render the first tree, extract it
  @@ -45,11 +46,7 @@ def generate(input_file, output_file):
  current_tone = 0
  # first parse the total time
  - try:
  total_time = float(parsed_json["result"])
  - except:
  - exit(1)
  - print(total_time)
  # assign an impact factor to nodes
  # this is used for rendering opacity
  