Question: What city is located in Gauteng, South Africa with a suburb called Kew?
Related documents: [0]  [DOC] Kew is a suburb of Johannesburg, South Africa. It is located in Region E. [END] 
[1]  [DOC] Johannesburg ( ; ] ; also known as Jozi, Joburg and Egoli) is the largest city in South Africa and is one of the 50 largest urban areas in the world. It is the provincial largest city in Gauteng, which is the wealthiest province in South Africa. While Johannesburg is not one of South Africa's three capital cities, it is the seat of the Constitutional Court. The city is located in the mineral-rich Witwatersrand range of hills and is the centre of large-scale gold and diamond trade. [END] 
Answer: 
Johannesburg
Johannesburg