machine_question: what is the money of where the currency Argentina peso ley is used  called
question: What money is used where the Argentina peso ley is used?
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:location.country.currency_formerly_used ns:m.0b87yv . 
  ?c ns:location.country.currency_used ?x .
  }
  
webqsp_question: what is the money of argentina called