What is the {isotope of neutronium} with the {MAX(mean lifetime)} ?
Is there a maximum lifetime of isotope of neutronium?
What is the maximum lifetime of isotope of neutronium?
SELECT ?p WHERE { ?p property:mean_lifetime ?b . ?p rdf:type ontology:isotope_of_neutronium }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q12525553>.
?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/P2645>.
?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:Q12525553 . ?ent wdt:P2645 ?obj } ORDER BY DESC(?obj)LIMIT 5 
neutron