Question: What is the name of Shakespeare's mother who died in 1608?
Answer(s):
answer: Mary Shakespeare

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.081k8)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.081k8 ns:people.person.parents ?x .
?x ns:people.deceased_person.date_of_death "1608-09"^^xsd:dateTime . 
}