name the tv series produced by laurence marks and laurence marks ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_producer dbr_Laurence_Marks_ attr_open American_writer attr_close sep_dot var_uri dbo_producer dbr_Laurence_Marks_ attr_open American_writer attr_close sep_dot var_uri a dbo_TelevisionShow brack_close