anchor.diff:  				    </c:otherwise>
   			    </c:choose>
   			    
  +			    <%-- only show error messages if logged in --%>
  +			    <c:if test="${ ! showSelfEdits}">
  +			       <c:set var="errorMsg" value=""/>
  +			    </c:if>
  +			    
   			    <%-- output the actual html --%>
   			    <c:choose>
   			    	<c:when test="${!empty uri}">
   			            <c:url var="olink" value="/entity"><c:param name="uri" value="${uri}"/></c:url>
  -		                <a href="<c:out value="${olink}"/>">${name}</a>&nbsp;${label}&nbsp;${startYear}${endYear}
  +		                <a href="<c:out value="${olink}"/>">${name}</a>&nbsp;${label}&nbsp;${startYear}${endYear} ${errorMsg}
   		            </c:when>
   		            <c:otherwise>
  -		                <p:process><strong>${name}</strong> ${label}</p:process> 
  +		                <p:process><strong>${name}</strong> ${label}</p:process> ${errorMsg}
   		            </c:otherwise>
   		        </c:choose>
   		        
  
positive.code:  roleActivityLabel: human readable label of activity used for error messages   
   --%>
   
  <c:choose>
  	<c:when test="${!empty individual}"><%-- individual is the OBJECT of the property referenced -- the Role individual, not the Person or grant --%>
   		<c:choose>
  
negative.code:                                 <c:choose>
                                      <c:when test="${!empty individual.name}"><c:set var="name" value="${individual.name}"/></c:when>
                                      <c:otherwise><c:set var="name" value="unlabeled ${param.roleActivityLabel} to person relation"/></c:otherwise>
                                 </c:choose>
                                 <c:set var="name" value="unknown person"/>
                                 <c:set var="label" value="${!empty individual.rdfsLabel ? individual.rdfsLabel : 'unlabled param.roleActivityLabel to person relation' }"/>                   
                                 <c:set var="errorMsg" value="&nbsp;(unidentified person - please edit)"/>
                                 <c:set var="uri" value=""/>
  					        </c:otherwise>
  					    </c:choose>
  					</c:when>
  