anchor.diff:  <c:set var="orgClass" value="http://xmlns.com/foaf/0.1/Organization" />
   
   <%-- Define predicates used in n3 assertions and sparql queries --%>
  -<c:set var="titlePred" value="${vivoCore}titleOrRole" />
   <c:set var="startYearPred" value="${vivoCore}startYear" />
   <c:set var="endYearPred" value="${vivoCore}endYear" />
   <c:set var="positionInOrgPred" value="${vivoCore}positionInOrganization" />
  
positive.code: </v:jsonset>
  
  <v:jsonset var="positionTitleAssertion" >      
      ?position <${titlePred}> ?positionTitle ;
                <${label}> ?positionTitle . 
  </v:jsonset>
  
  <v:jsonset var="positionTypeAssertion">
  
negative.code: 
  <v:jsonset var="positionTitleQuery" >  
      SELECT ?existingPositionTitle WHERE {
            ?position <${label}> ?existingPositionTitle . }
  </v:jsonset>
  
  <v:jsonset var="positionTypeQuery">
  