Question: What disease led to the demise of Letitia MacTavish Hargrave and Martino Martini?
SPARQL query: SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Letitia_MacTavish_Hargrave> <http://dbpedia.org/ontology/deathCause> ?uri. <http://dbpedia.org/resource/Martino_Martini> <http://dbpedia.org/ontology/deathCause> ?uri . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Disease>}
Answer: The disease that was the cause of death of both Letitia MacTavish Hargrave and Martino Martini is [Cholera].