Question: Give me all films produced by Steven Spielberg with a budget of at least $80 million.
SPARQL:
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX res: <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT DISTINCT ?uri 
WHERE {
        ?uri rdf:type dbo:Film .
        ?uri dbo:director res:Steven_Spielberg .
        ?uri dbo:budget ?b .
        FILTER( xsd:double(?b) >= 8.0E7 )
}