{
  "comments": {
    "new": "ISBN: 1-55345-586-X"
  },
  "ring_codes": {
    "new": "PCO422CD2\tMADE IN CANADA\tS01542 6701, 6709",
    "old": "PCO422CD2\tMADE IN CANADA\tS01542 6701"
  }
}