Question: How many years was the Ford Model T manufactured?
SPARQL query:
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> PREFIX res: <http://dbpedia.org/resource/> PREFIX onto: <http://dbpedia.org/ontology/> SELECT (year(xsd:date(?end))-year(xsd:date(?start)) AS ?years) WHERE { res:Ford_Model_T onto:productionEndYear ?end. res:Ford_Model_T onto:productionStartYear ?start. }