anchor.diff:      "sparqlForUris" : {  },
       "sparqlForExistingLiterals" : {
           "title"              : "${titleExisting}",
  -        "organizationName"   : "${organizationNameExisting}",
           "startYear"          : "${startYearExisting}",
           "endYear"            : "${endYearExisting}"
       },
       "sparqlForExistingUris" : {
  -        "organizationUri"   : "${organizationUriExisting}"
  +        "organizationUri"   : "${organizationUriExisting}",
  +        "positionType"      : "${positionTypeExisting}"
       },
       "fields" : {
         "title" : {
  
positive.code: 
      "urisInScope"    : { },
      "literalsInScope": { },
      "urisOnForm"     : [ "organizationUri", "newOrgType" ],
      "literalsOnForm" :  [ "title", "newOrgName", 
                            "startYear", "endYear" ],
      "filesOnForm"    : [ ],
  
negative.code:     ?organizationUri <${orgForPositionPred}> ?positionUri .
  </v:jsonset>
  
  <v:jsonset var="positionTypeExisting">
      SELECT ?existingPositionType WHERE {
          ?positionUri <${type}> ?existingPositionType }
  </v:jsonset>
  <v:jsonset var="positionTypeAssertion">
      ?positionUri <${type}> ?positionType .
  </v:jsonset>
  
  <v:jsonset var="newOrgNameAssertion">
      ?newOrg <${label}> ?newOrgName .
  </v:jsonset>
  