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