who wrote the battlestar galactica theme ?
select distinct var_uri where brack_open dbr_Battlestar_Galactica_ attr_open 2004_TV_series attr_close dbo_composer var_uri sep_dot dbr_Battlestar_Galactica_ attr_open 2004_TV_series attr_close rdf_type dbo_TelevisionShow sep_dot brack_close