who created the sumner monument and also the altar frontal from la seu d'urgell or of the apostles ?
SELECT DISTINCT var_uri where brack_open dbr_Sumner_Monument_ attr_open Earl_Park,_Indiana attr_close dbp_artist var_uri sep_dot dbr_Altar_frontal_from_La_Seu_d'Urgell_or_of_The_Apostles dbp_artist var_uri brack_close