SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Cavalcade_of_America> <http://dbpedia.org/ontology/writer> ?uri. <http://dbpedia.org/resource/The_United_States_Steel_Hour> <http://dbpedia.org/ontology/writer> ?uri . }
Who is the writer of the Cavalcade of America and The United States Steel Hour ?
SELECT DISTINCT ?b WHERE { resource:The_United_States_Steel_Hour property:writer ?b . . resource:Cavalcade_of_America property:writer ?b }
Arthur Miller
The writer of both Cavalcade of America and The United States Steel Hour is [Arthur Miller].
The author of  Cavalcade of America and The United States Steel Hour  is [Arthur Miller].