"1950-11-21Z"^^ . "Nainggolan, RE"@en . "Indonesian politician" . "1950Z"^^ . . . . . . "Dr. Drs. Rustam Effendy Nainggolan, M.M. (born November 21, 1950) in Pematang Siantar, North Sumatera also known as RE Nainggolan is a local government official in North Sumatra, his last position as Provincial Secretary of North Sumatra."@en . . "Provincial Secretary of Sumatera Utara" . . "Rustam Effendy Nainggolan"@en . . "Cawagub Sumut 2013-2018" .