machine_question: who fought in the battle of vicksburg and was buried in General Grant National Memorial
question: Who is the person that fought in the Battle of Vicksburg and is buried in the General Grant National Memorial?
sparql: PREFIX ns: <http://rdf.freebase.com/ns/>
  SELECT DISTINCT ?x
  WHERE {
  FILTER (?x != ns:m.01hf7f)
  FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
  ns:m.01hf7f ns:base.culturalevent.event.entity_involved ?x .
  ?x ns:people.deceased_person.place_of_burial ns:m.06_3v55 . 
  }
webqsp_question: who fought in the battle of vicksburg