which shows' opening themes was used to make over the hills and far away ?
SELECT DISTINCT var_uri where brack_open var_x dbo_subsequentWork dbr_Over_the_Hills_and_Far_Away_ attr_open Led_Zeppelin_song attr_close sep_dot var_uri dbo_openingTheme var_x sep_dot var_uri a dbo_TelevisionShow brack_close