Question: What company did the Windstream Holdings used to be?
Answer(s):
answer: AT&T Corporation

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:organization.organization.child ?k .
?k ns:organization.organization_relationship.child ns:m.0d1t_9 . 
?c ns:organization.organization.spun_off_from ?y .
?y ns:organization.organization_spin_off.parent_company ?x .
}