{
  "barcode": {
    "new": "0 47875 32377 3, 0 47875 32741 2",
    "old": "0 47875 32377 3"
  },
  "comments": {
    "new": "ISBN: 1-58416-543-X, 1-58416-744-0",
    "old": "ISBN: 1-58416-543-X"
  }
}