machine_question: where was the roman empire centered and is the place in which the fictional character Sofia Sartor lived
question: Where did the fictional character Sofia Sartor live that was also the center of the Roman Empire?
sparql: PREFIX ns: <http://rdf.freebase.com/ns/>
  SELECT DISTINCT ?x
  WHERE {
  FILTER (?x != ns:m.06cmp)
  FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
  ns:m.06cmp ns:location.country.capital ?x .
  ?x ns:fictional_universe.fictional_setting.characters_that_have_lived_here ns:m.0n2_v3s . 
  }
webqsp_question: where was the roman empire centered