anchor.diff:           "rangeLang"        : "",         
            "assertions"       : ["${startYearAssertion}"]
         },
  -      "startYearMonth" : {
  -         "newResource"      : "false",
  -         "validators"       : [],
  -         "optionsType"      : "UNDEFINED",
  -         "literalOptions"   : [ ],
  -         "predicateUri"     : "",
  -         "objectClassUri"   : "",
  -         "rangeDatatypeUri" : "http://www.w3.org/2001/XMLSchema#gYearMonth";
  -         "rangeLang"        : "",         
  -         "assertions"       : [ "${startYearMonthAssertion}" ]
  -      },
  -      "startDate" : {
  -         "newResource"      : "false",
  -         "validators"       : [],
  -         "optionsType"      : "UNDEFINED",
  -         "literalOptions"   : [],
  -         "predicateUri"     : "",
  -         "objectClassUri"   : "",
  -         "rangeDatatypeUri" : "http://www.w3.org/2001/XMLSchema#Date",
  -         "rangeLang"        : "",         
  -         "assertions"       : [ "${startDateAssertion}" ]
  -      },
         "endYear" : {
            "newResource"      : "false",
  -         "validators"       : [ ],
  +         "validators"       : [ "datatype:http://www.w3.org/2001/XMLSchema#gYear" ],
            "optionsType"      : "UNDEFINED",
            "literalOptions"   : [ ],
            "predicateUri"     : "",
  
positive.code:       },
        "startYear" : {
           "newResource"      : "false",
           "validators"       : [ ],
           "optionsType"      : "UNDEFINED",
           "literalOptions"   : [ ],
           "predicateUri"     : "",
  
negative.code:         "title"              : "${titleExisting}",
          "organizationName"   : "${organizationNameExisting}",
          "startYear"          : "${startYearExisting}",
          "endYear"            : "${endYearExisting}"
      },
      "sparqlForExistingUris" : {
          "organizationUri"   : "${organizationUriExisting}"
  