code: def nyt10_engine(self):
      data = []
      with open(self.src_file) as infile:
          for line in infile:
              changed_line = dict()
              line = eval(line)
              changed_line["x"] = line["text"]
              changed_line["y"] = line["relation"]
              head_span = line["h"]["pos"]
              tail_span = line["t"]["pos"]
              changed_line["subj"] = line["text"][
                  head_span[0] : head_span[1]
              ]
              changed_line["obj"] = line["text"][
                  tail_span[0] : tail_span[1]
              ]
              data.append(changed_line)
          return data
  
imports: import json
label_desc: Use image node_id 3 for calling the format_changer obj's underlying member method code with example usage: obj.nyt10_engine() and returns: data