Question: Which award established before 1957 has Louis Sachar won?
Answer(s):
answer: John Newbery Medal

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01bq8d)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01bq8d ns:award.award_winner.awards_won ?y .
?y ns:award.award_honor.award ?x .
?x ns:award.award_category.date_established ?num .
FILTER (?num < "1957"^^xsd:dateTime) . 
}