Question: Show me all songs from Bruce Springsteen released between 1980 and 1990.
SPARQL query:
PREFIX onto:  <http://dbpedia.org/ontology/>
PREFIX res:  <http://dbpedia.org/resource/>
PREFIX yago: <http://dbpedia.org/class/yago/>
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:Song .
        ?uri onto:artist res:Bruce_Springsteen .
        ?uri onto:releaseDate ?date . 
        FILTER (?date >= '1980-01-01'^^xsd:date && ?date <= '1990-12-31'^^xsd:date)
        OPTIONAL { ?uri rdfs:label ?string. FILTER (lang(?string) = 'en') }
}