Question: What   is agent in   action of James C. Marshall ?
Paraphrase: What is operator in activity of James C. Marshall ?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q21197527 wdt:P607 ?X . ?X wdt:P710 ?answer}
Answer: Central Powers, Allies of the First World War, Douglas MacArthur, Takeo Kurita, Thomas Cassin Kinkaid, Chester W. Nimitz, Tomoyuki Yamashita, Jisaburō Ozawa, Walter Krueger, George Kenney