Question: Which appointer of William Clark is the successor of Levi Lincoln Sr ?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Levi_Lincoln,_Sr.> prop:successor ?uri. <http://dbpedia.org/resource/William_Clark> prop:appointer ?uri}