# Select all projects that have a responsible person (3 relevant endpoints)

PREFIX ns3: <http://namespace3.org/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
PREFIX owl:  <http://www.w3.org/2002/07/owl#>

SELECT ?project ?label ?person ?name WHERE {
	SERVICE <http://endpoint2> {
 		?person rdf:type foaf:Person .
 		?person foaf:name ?name .
 	} .
 	SERVICE <http://endpoint3> { 		
 		?project ns3:responsible ?person .
 		?project rdf:type ns3:Project .
 		?project rdfs:label ?label .
 	}
}