code: def parse_doc (json_iter):
      
      global DEBUG
  
      for meta in json_iter:
          base_idx = 0
  
          for graf_text in filter_quotes(meta["text"], is_email=False):
              if DEBUG:
                  print("graf_text:", graf_text)
  
              grafs, new_base_idx = parse_graf(meta["id"], graf_text, base_idx)
              base_idx = new_base_idx
  
              for graf in grafs:
                  yield graf
docs: parse one document to prep for TextRank