Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Q: Context : Xu Yifan (Chinese: , born 8 August 1988 in Tianjin) is a Chinese female professional tennis player playing on the ITF and WTA Women's Circuits.
Answer : Tianjin
A:
What city is Xu Yifan from?