Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.

concept: Lena River question: where does lena river begin and end?
['Baikal Mountains']

concept: Jordyn Wieber question: what did jordyn wieber win gold for?
["Gymnastics at the 2012 Summer Olympics Women's artistic team all-around"]

concept: South Africa question: what is d capital city of south africa?
Bloemfontein, Pretoria, Cape Town