code: def main(inp_fn: str,
           domain: str,
           out_fn: str) -> None:
      
      with open(out_fn, 'w') as fout:
          for sent_ls in read(inp_fn):
              fout.write("{}\n\n".format('\n'.join(['\t'.join(map(str,
                                                                  pad_line_to_ontonotes(line,
                                                                                        domain)))
                                                    for line
                                                    in convert_sent_to_conll(sent_ls)])))
docs: inp_fn: str, required.
         Path to file from which to read Open IE extractions in Open IE4's format.
      domain: str, required.
         Domain to be used when writing CoNLL format.
      out_fn: str, required.
         Path to file to which to write the CoNLL format Open IE extractions.