Question: When was Jimmy Wales employed as Bomis and when did it end?
Paraphrase: When was Jimmy Ribs utilized as Bomis and when did it conclusion?
SPARQL (Wikidata): SELECT ?value1 ?value2 WHERE { wd:Q181 p:P108 ?s . ?s ps:P108 wd:Q935818 . ?s pq:P582 ?value1 . ?s pq:P580 ?value2 }