Question: Give me all video games published by Mean Hamster Software.
SPARQL query:
PREFIX onto: <http://dbpedia.org/ontology/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX res:  <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?uri ?string 
WHERE {
      ?uri rdf:type onto:VideoGame .
      { ?uri prop:publisher 'Mean Hamster Software'@en . }
      UNION 
      { ?uri onto:publisher res:Mean_Hamster_Software . }
      OPTIONAL { ?uri rdfs:label ?string . FILTER (lang(?string) = 'en') }
}