Question: In which city was the assassin of Martin Luther King born?
SPARQL:
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX res: <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT DISTINCT ?uri
WHERE {
        res:Martin_Luther_King,_Jr. text:"assassin" ?x . 
        ?x dbo:birthPlace ?uri .
        ?uri rdf:type dbo:Settlement .
}