http://dbpedia.org/resource/Otello
http://dbpedia.org/resource/Aida
http://dbpedia.org/resource/Ernani
http://dbpedia.org/resource/Il_trovatore
http://dbpedia.org/resource/La_traviata
http://dbpedia.org/resource/Rigoletto
http://dbpedia.org/resource/Norma_(opera)
http://dbpedia.org/resource/Un_ballo_in_maschera
http://dbpedia.org/resource/La_sonnambula
http://dbpedia.org/resource/La_forza_del_destino
http://dbpedia.org/resource/Cavalleria_rusticana
http://dbpedia.org/resource/J%C3%A9rusalem
http://dbpedia.org/resource/Il_curioso_indiscreto
