context: Asahan River is a 147 Km long river in North Sumatra Province, Indonesia. [1] This river flows from the mouth of Lake Toba, passes through Porsea in Toba Samosir Regency and ends at Teluk Nibung, Malacca Strait, Asahan Regency near Tanjungbalai City. In the lower reaches of the river, floods often occur because of the overflow of the river. [2] Asahan River is the third best river in the world for rafting. [3]
question: Where does the Asahan River flow end?
answers.text: Teluk Nibung, Malacca Strait, Asahan Regency