@prefix ex: <http://example.org/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .


ex:graph1 {
	ex:Person11 rdf:type foaf:Person ;
		foaf:name "Person 11" .
	
	ex:Person12 rdf:type foaf:Person ;
		foaf:name "Person 12" .
	
	ex:Person13 rdf:type foaf:Person ;
		foaf:name "Person 13" .
		
	ex:Person14 rdf:type foaf:Person ;
		foaf:name "Person 14" .
	
	ex:Person15 rdf:type foaf:Person .
}

ex:graph2 {
	ex:Person16 rdf:type foaf:Person ;
		foaf:name "Person 16" .
	
	ex:Person17 rdf:type foaf:Person ;
		foaf:name "Person 17" .
	
	ex:Person18 rdf:type foaf:Person ;
		foaf:name "Person 18" .
		
	ex:Person19 rdf:type foaf:Person ;
		foaf:name "Person 19" .
	
	ex:Person20 rdf:type foaf:Person ;
		foaf:name "Person 20" .
}

ex:graph3 {
	ex:Person15 foaf:name "Person 15" .
}