creating sub sub entities in gdm encoder

[ {
  "http://data.slub-dresden.de/datamodels/4/records/8d2da158-08ab-4d99-8cb0-b284b6a82d5d" : [ {
    "http://foaf.de/some/Place" : [ {
      "http://data.slub-dresden.de/datamodels/8e9fc91e-9933-49ac-ba1c-e8891693df6c/schema#bornIn" : "Stadt"
    } ]
  }, {
    "http://example.org/some/Person" : [ ]
  }, {
    "http://example.org/bla" : [ {
      "http://example.org/subBla2" : "test1"
    }, {
      "http://example.org/subBla1" : "ZS"
    } ]
  }, {
    "http://purl.org/dc/terms/contributor" : [ {
      "http://xmlns.com/foaf/0.1/familyName" : "test1"
    }, {
      "http://xmlns.com/foaf/0.1/givenName" : "ZS"
    } ]
  }, {
    "http://purl.org/dc/elements/1.1/title" : "a|||||||||||||"
  }, {
    "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : "http://purl.org/ontology/bibo/Document"
  } ]
}, {
  "http://data.slub-dresden.de/datamodels/4/records/460ef315-106e-4fc2-a906-74ca8244060e" : [ {
    "http://foaf.de/some/Place" : [ {
      "http://data.slub-dresden.de/datamodels/8e9fc91e-9933-49ac-ba1c-e8891693df6c/schema#bornIn" : "Stadt"
    } ]
  }, {
    "http://example.org/some/Person" : [ ]
  }, {
    "http://example.org/bla" : [ {
      "http://example.org/subBla2" : "test2"
    }, {
      "http://example.org/subBla1" : "MB"
    } ]
  }, {
    "http://purl.org/dc/terms/contributor" : [ {
      "http://xmlns.com/foaf/0.1/familyName" : "test2"
    }, {
      "http://xmlns.com/foaf/0.1/givenName" : "MB"
    } ]
  }, {
    "http://purl.org/dc/elements/1.1/title" : "a|||||||||||||"
  }, {
    "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : "http://purl.org/ontology/bibo/Document"
  } ]
} ]