machine_question: what did the person that said "The devil is God's ape!" do
question: What is the person that stated "The devil is God's ape!", occupation?
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:people.person.quotations ns:m.048g2gr . 
  ?c ns:people.person.profession ?x .
  }
  
webqsp_question: what did martin luther do