What is the {human} with the {MAX(stated age at event)} ?
At an event, who is the oldest person?
Who is the oldest person at an event?
SELECT ?o WHERE { ?o rdf:type ontology:human . ?o property:age_at_event ?n }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5>.
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?ent .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3629>.
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .}
ORDER BY DESC(?obj)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q5 . ?ent wdt:P3629 ?obj } ORDER BY DESC(?obj)LIMIT 5 
Rolf-Axel Eberhardt Mary J. Corey Ahmad Noor Sulaiman Hammou Mouhal Álvaro de Luna