Detailed Instructions: In this task, you will be presented with a question and you have to answer the question based on your knowledge. Your answers should be as short as possible.
See one example below:
Problem: Who were the builders of the mosque in Herat with fire temples ?
Solution: Ghurids
Explanation: This is a good example. Ghurids were the builders of the mosque in Herat with fire temples.

Problem: What year did the racer who finished the IAAF 's World Half Marathon Championships of 1997 in 1:00:18 become a citizen of Belgium ?
Solution:
1997