Question: What is the alma mater of Alvin Bell and Charles Plosser?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
 SELECT DISTINCT ?uri WHERE { res:Alvin_Bell onto:college ?uri. res:Charles_Plosser prop:almaMater ?uri}