{
  "cloud-region": {
             "cousins" : [],
             "parents":[]
  },
  "availability-zone": {
             "cousins" : [],
             "parents":["cloud-region"]
  },
  "pserver" : {
             "cousins" : ["zone", "complex", "availability-zone"],
             "parents":[]
  },
  "complex" : {
           "cousins":[],
           "parents":[]
  },
  "zone" : {
          "cousins":["complex"],
          "parents":[]
  }
}