{"_context" : {
    "_types" : {
      "EmptyIntegerList" : {"_id" : "uima.cas.EmptyIntegerList" }, 
      "NonEmptyIntegerList" : {"_id" : "uima.cas.NonEmptyIntegerList", 
        "_feature_types" : {"tail" : "_array" } }, 
      "IntegerList" : {"_id" : "uima.cas.IntegerList", 
        "_subtypes" : ["EmptyIntegerList",  "NonEmptyIntegerList" ] }, 
      "ListBase" : {"_id" : "uima.cas.ListBase", 
        "_subtypes" : ["IntegerList" ] }, 
      "TOP" : {"_id" : "uima.cas.TOP", 
        "_subtypes" : ["ListBase" ] } } }, 
  "_views" : {
    "_InitialView" : {
      "NonEmptyIntegerList" : [
        {"tail" : 3,  "head" : 11 } ] } }, 
  "_referenced_fss" : {
    "3" : {"_type" : "NonEmptyIntegerList",  "tail" : 2,  "head" : 22 }, 
    "2" : {"_type" : "NonEmptyIntegerList",  "tail" : 1,  "head" : 33 }, 
    "1" : {"_type" : "EmptyIntegerList" } } }