PREFIX iv:   <http://www.intuview.com/ontology#>
				PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
				PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
SELECT ?x ?z ?y ?w ?xcap WHERE { 
		
			?x rdf:type iv:Person-object .
			?x iv:ethnicity iv:western .
		
	?x iv:context "doc468".
  				  {
  				  	?x iv:aggregated-from ?y .
  				    ?x iv:caption ?xcap .
  				  } 
  				  UNION
  				  {
  				  	?x iv:aggregated-from ?z .
  				  	?z rdf:type rdf:Seq .
                	?z ?w ?y .
                	?x iv:caption ?xcap .
  				  }
  				}