Question: What position did Charles G. Dawes hold starting April 16, 1929?
Paraphrase: What spot did Charles G. Dawes have authority over beginning April 16, 1929?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q184565 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1929')) }