Question: How did the child of Stevens T. Mason die?
SPARQL query: SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Stevens_Thomson_Mason_(Virginia)> <http://dbpedia.org/ontology/child> ?x . ?x <http://dbpedia.org/ontology/deathCause> ?uri  . }
Answer: [Cholera] is the cause of death of the child of Stevens Thomson Mason.