What is the {chemical element} with the {MAX(thermal conductivity)} ?
Which chemical element has the highest thermal conductivity?
select ?ent where { ?ent wdt:P31 wd:Q11344 . ?ent wdt:P2068 ?obj } ORDER BY DESC(?obj)LIMIT 5 
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q11344>.
?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/P2068>.
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .}
ORDER BY DESC(?obj)
LIMIT 5
What can be considered as the chemical element with greater thermal conductivity?