Question: What position did John C. Calhoun hold in Series Ordinal when he was 16?
Paraphrase: Which position did John C. Calhoun hold in Series Ordinal when he was 16?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q207191 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P1545 ?x filter(contains(?x , '16')) }