Question: Where is the predecessor of john waldo from?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/successor> <http://dbpedia.org/resource/John_B._Waldo> . ?x <http://dbpedia.org/property/state> ?uri  . }
Answer: The states of the predecessor of John B. Waldo are [Oregon, Oregon].