# filename: ex406.rq

PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dcterms: <http://purl.org/dc/terms/>

SELECT ?name ?homepage ?description 
WHERE
{
   ?co dcterms:subject
       <http://dbpedia.org/resource/Category:Wind_power_companies> ;
   rdfs:label ?name ;
   rdfs:comment ?description ;
   <http://dbpedia.org/property/homepage> ?homepage .
   FILTER ( lang(?name) = "en" )
   FILTER ( lang(?description) = "en" )
}