machine_question: who fought in the battle of vicksburg and that died on 1885-07-23
question: Who fought in the battle of Vicksburg, that died on July, 23,1885?
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.date_of_death "1885-07-23"^^xsd:dateTime . 
  }
webqsp_question: who fought in the battle of vicksburg