{
  "comments": {
    "new": "Nikkei Mac 7-gatsugou 1999/6/18 Hakkou Dai-75-gou (Issue 75, July 1999)",
    "old": "Nikkei Mac 7-gatsugou 1999/6/18 Hakkou Dai-75-gou"
  },
  "ring_codes": {
    "new": "NIKKEI-MAC9907\tA9E28-6 IFPI LA82 IFPI 9C05\nNIKKEI-MAC9907\tA9E28-4 IFPI LA82 IFPI 9C06",
    "old": "NIKKEI-MAC9907\tA9E28-6 IFPI LA82 IFPI 9C05"
  }
}