Question: What former President of Israel was involved in the Israeli Palestinian conflict status post 1949-02-17?
Answer(s):
answer: Chaim Weizmann

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0cj5y)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0cj5y ns:time.event.people_involved ?x .
?x ns:government.politician.government_positions_held ?c .
?c ns:government.government_position_held.from "1949-02-17"^^xsd:dateTime . 
}