Question: Who Jessica Simpson married too who had regular tv appearance until 2013-08-06?
Answer(s):
answer: Nick Lachey

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0c7xjb)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0c7xjb ns:people.person.spouse_s ?y .
?y ns:people.marriage.spouse ?x .
?y ns:people.marriage.type_of_union ns:m.04ztj .
?x ns:tv.tv_personality.tv_regular_appearances ?c .
?c ns:tv.tv_regular_personal_appearance.to "2013-08-06"^^xsd:dateTime . 
}