hdi_from_dbpedia.rb

#!/usr/bin/env ruby
require 'sparql/client'

sparql = SPARQL::Client.new("http://dbpedia.org/sparql")
query = "prefix dbpprop: <http://dbpedia.org/property/>
prefix dbpedia-owl: <http://dbpedia.org/ontology/>

select ?name, ?hdi
where {
  ?country a dbpedia-owl:Country .
  ?country dbpprop:commonName ?name .
  ?country dbpprop:hdi ?hdi
}
"

sparql.query(query).each { |r| r.each_binding { |x, y| puts "#{x}: #{y}" } }