{
  "comments": {
    "new": "ISBN: 0-7845-4349-6\n\nSerial indicates this is a revision.",
    "old": "Serial indicates this is a revision."
  },
  "ring_codes": {
    "new": "R5A0P\t1672927 D12N IFPI L250 13\nIFPI 41S3\nR5A0P\t1672927 D10N IFPI L250 11\nIFPI 41S3",
    "old": "R5A0P\t1672927 D12N IFPI L250 13\nIFPI 41S3"
  }
}