Question: What speaker, who spoke about the Berlin Wall, died firsT?
Answer(s):
answer: Joseph P. Kennedy, Jr.

SPARQL query:
#MANUAL SPARQL
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE { 
  ns:m.0fbrl ns:people.family.members ?x .  # Kennedy Family
  ?x ns:people.deceased_person.date_of_death ?d .
}
ORDER BY ?d
LIMIT 1