Question: Of the people that died of radiation in Los Alamos, whose death was an accident?
SPARQL:
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT DISTINCT ?uri 
WHERE {
        ?rui dbo:deathPlace <http://dbpedia.org/resource/Los_Alamos,_New_Mexico> .
        ?uri dbo:deathCause res:Acute_radiation_syndrome .
        ?uri text:"death circumstance" text:"accident" .
}