Question: When did academic degree of Dimitri Mendeleyev and field of work?
Paraphrase: When was Dimitri Mendeleyev's academic degree and field of work done?
SPARQL (Wikidata): SELECT ?value1 ?obj WHERE { wd:Q9106 p:P512 ?s . ?s ps:P512 ?obj . ?s pq:P101 ?value1 . }