<p> [{
  "id":            "/base/microdata/vcard",
  "type":          "/type/type",
  "name":          null,
  "/base/microdata/itemtype/uri": null,
  "/common/topic/article": {
    "optional": true,
    "text":     null,
    "limit":    1
  },
  "/base/microdata/itemtype_generator_hints/groups": [{
    "type":     "/base/microdata/itemprop_generator_group",
    "name":     null,
    "proplist": [{
      "id":    null,
      "name":  null,
      "index": null,
      "sort":  "index"
    }],
    "/common/topic/article": {
      "optional": true,
      "text":     null,
      "limit":    1
    },
    "index":    null,
    "sort":     "index",
    "optional": true
  }],
  "properties": [{
    "id":            null,
    "name":          null,
    "index":         null,
    "sort":          "index",
    "/freebase/documented_object/tip": null,
    "/base/microdata/itemprop_generator_hints/field_class": [],
    "expected_type": {
      "id":            null,
      "name":          null,
      "/base/microdata/itemtype/uri": null,
      "/freebase/type_hints/enumeration": null,
      "properties": [{
        "optional":      true,
        "id":            null,
        "name":          null,
        "index":         null,
        "sort":          "index",
        "/freebase/documented_object/tip": null,
        "/base/microdata/itemprop_generator_hints/field_class": [],
        "expected_type": {
          "/base/microdata/itemtype/uri": null,
          "/freebase/type_hints/enumeration": null,
          "id":            null
        }
      }]
    }
  }]
}] </p>