machine_question: what is the music producer which produced I Am...Sasha Fierce 's daughters name
question: Who is the daughter of the producer of I Am...Sasha Fierce?
sparql: 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:music.producer.releases_produced ns:m.0bfln8s . 
  ?c ns:people.person.children ?x .
  }
  
webqsp_question: what is beyonce 's daughters name