{
  "comments": {
    "new": "ISBN: 1-55345-586-X"
  },
  "ring_codes": {
    "new": "PCO422CD1\tMADE IN CANADA\tS01541 6708, 6701",
    "old": "PCO422CD1\tMADE IN CANADA\tS01541 6708"
  }
}