Question: Who have John Randolph of Roanoke as predecessor?
SPARQL query: SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/predecessor> <http://dbpedia.org/resource/John_Randolph_of_Roanoke>  . }
Answer: The people whose predecessor was John Randolph of Roanoke are [Andrew Stevenson, Joseph Lewis, Jr., James Stephenson (congressman), Thomas Bouldin, George William Crump, James Buchanan, John Tyler].