who is associated with the musical artists from shirley bassey and scott walker ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_associatedMusicalArtist dbr_Shirley_Bassey sep_dot var_uri dbo_associatedMusicalArtist dbr_Scott_Walker_ attr_open singer attr_close sep_dot var_uri a dbo_MusicalArtist brack_close