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.
Problem:Context : Olaf Wildeboer Faber (born March 4, 1983 in Sabadell, Catalonia, Spain) is a freestyle swimmer.
Answer : Sabadell
Solution:
What city is Olaf Wildeboer from?