Question: Which of John Irving's written works was dedicated to Salman Rushdie?
Answer(s):
answer: A Son of the Circus

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.042v2)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.042v2 ns:book.author.works_written ?x .
?x ns:media_common.dedicated_work.dedication ?c .
?c ns:media_common.dedication.dedicated_to ns:m.04cbtrw . 
}