Question: What position did Theodosius I have when Arcadius replaced him?
Paraphrase: when Arcadius replaced him, which positioin did theodosius have?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q159369 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P1365 wd:Q46696 }