What is the {specialised classification scheme} for {discoverer or inventor} of {Dimitri Mendeleyev}
What is the classification scheme discovered by Dimitri Mendeleyev
 select distinct ?sbj where { ?sbj wdt:P61 wd:Q9106 . ?sbj wdt:P31 wd:Q24249534 } 
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P61> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q9106> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q24249534> } 
Name the classification scheme created by Dimitri Mendeleyev.