anchor.diff:      "filesOnForm"    : [ ],
       "sparqlForLiterals" : { },
       "sparqlForUris" : {  },
  -    "sparqlForExistingLiterals" : { "activityLabel":"${activityLabelQuery}", "roleLabel":"${roleLabelQuery}", "startYearMonth":"${startYearMonthQuery}", "endYearMonth":"${endYearMonthQuery}" },
  +    "sparqlForExistingLiterals" : { "activityLabel":"${activityLabelQuery}", "roleLabel":"${roleLabelQuery}", "startYear":"${startYearQuery}", "endYear":"${endYearQuery}" },
       "sparqlForExistingUris" : { "roleActivity":"${activityQuery}" },
       "fields" : {
         "activityLabel" : {
  
positive.code:     ?roleActivity  core:relatedRole ?role .    
  </v:jsonset>
  
  <v:jsonset var="n3ForNewActivityType">     
      ?roleActivity a ?roleActivityType .
  </v:jsonset>
  
  <v:jsonset var="n3ForNewActivityLabel">
      ?roleActivity <${label}> ?activityLabel .
  </v:jsonset>
  
  
negative.code:         ?existingActivity rdfs:label ?existingTitle . }
  </v:jsonset>
  
  <v:jsonset var="startYearQuery">
    PREFIX core: <${vivoCore}>  
    SELECT ?existingStartYear WHERE { ?role  core:startYear ?existingStartYear .}       
  </v:jsonset>
  
  <v:jsonset var="endYearQuery">
    PREFIX core: <${vivoCore}>  
    SELECT ?existingStartYear WHERE { ?role  core:endYear ?existingStartYear .}
  </v:jsonset>
  