Question: What illnesses were suffered by the political appointer who served as Collector of the Port of Philadelphia?
Answer(s):
answer: Malaria
answer: Smallpox
answer: Tuberculosis

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:government.political_appointer.appointees ?k .
?k ns:government.government_position_held.office_position_or_title ns:m.0c6b2f5 . 
?c ns:medicine.notable_person_with_medical_condition.condition ?x .
}