Question: What was Stephen Hillenburg's field of work when he was employed by the Ocean Institute?
Paraphrase: What job did Stephen Hillenburg have when he worked at the Ocean Institute?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q318750 p:P108 ?s . ?s ps:P108 wd:Q3348664 . ?s pq:P101 ?value}