Question: Who is the youngest player in the Premier League?
SPARQL query:
PREFIX onto: <http://dbpedia.org/ontology/>
PREFIX res: <http://dbpedia.org/resource/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?uri ?string WHERE {
	?uri onto:team ?x .
	?x onto:league res:Premier_League .
	?uri onto:birthDate ?y .
        OPTIONAL { ?uri rdfs:label ?string. FILTER (lang(?string) = 'en') }
}
ORDER BY DESC(?y) OFFSET 0 LIMIT 1