who is associated with the musical artists from stevie nicks and timothy b . schmit ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_associatedMusicalArtist dbr_Stevie_Nicks sep_dot var_uri dbo_associatedMusicalArtist dbr_Timothy_B._Schmit sep_dot var_uri a dbo_MusicalArtist brack_close