Question: Name the common institute of Robert hall and Erica Frank ?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Robert_Hall_(economist)> onto:institution ?uri. <http://dbpedia.org/resource/Erica_Frank> onto:institution ?uri . }