anchor.diff:  				<c:forEach items="${pis.rows}" var="pi" varStatus="counter">
   					<li><a href="#">'Person' entities which are (co-)investigators on 'Grant' entities</a> (${pi.counts.string})</li>
   				</c:forEach>
  -  </sparql:sparql>
  -
  -
  -<sparql:sparql>
  +    </sparql:sparql>
  +    </sparql:lock>
  +
  +    <sparql:lock model="${applicationScope.jenaOntModel }">    
  +    <sparql:sparql>
         <sparql:select model="${applicationScope.jenaOntModel}" var="grants">
             PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
         	  PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
  
positive.code: 				<c:forEach items="${grants.rows}" var="grant" varStatus="counter">
  					<li><a href="#">'Grant' entities</a> (${grant.counts.string})</li>
  				</c:forEach>
    </sparql:sparql>
  </ul>
  <ul>
  
  	<!--
  		Teacher-Course
  	-->
  
  	<sparql:sparql>
  	      <sparql:select model="${applicationScope.jenaOntModel}" var="teachings">
  	          PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
  
negative.code: 					<c:forEach items="${confauthorships.rows}" var="confauthorship" varStatus="counter">
  						<li><a href="#">'Person'-'ConferencePaper' linkages</a> (${confauthorship.counts.string})</li>
  					</c:forEach>
      </sparql:sparql>
      </sparql:lock>
  
      <sparql:lock model="${applicationScope.jenaOntModel }">
      <sparql:sparql>
        <sparql:select model="${applicationScope.jenaOntModel}" var="confauthors">
            PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
        	  PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
  