PREFIX : <http://example.com/prop#>
PREFIX dbont: <http://dbpedia.org/ontology/>
PREFIX dbp: <http://dbpedia.org/property/>
PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>
CONSTRUCT { 
   ?musician1 :sameBirthPlace ?musician2 .
   ?musician2 :sameBirthPlace ?musician1 .
}
WHERE {
   ?musician1 dbont:birthPlace ?place .
   ?musician2 dbont:birthPlace ?place .
}
LIMIT 10000