give me all professional bbc world service from norfolk .
select distinct var_uri where brack_open var_uri dbo_occupation dbr_BBC_World_Service sep_dot brack_open var_uri dbo_birthPlace dbr_Norfolk sep_dot brack_close union brack_open var_uri dbo_birthPlace var_place sep_dot var_place dbo_country dbr_Norfolk sep_dot brack_close brack_close