{
  "_views" : {
    "_InitialView" : {
      "RefTypes" : [
        {"sofa" : 2,  "aFS" : 3 },  3 ] } }, 
  "_referenced_fss" : {
    "2" : {"_type" : "Sofa",  "sofaNum" : 1,  "sofaID" : "_InitialView" }, 
    "3" : {"_type" : "RefTypes",  "sofa" : 2 } } }