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: Which historical marker is located in a town with a population of 420 at the 2010 census ?
Solution:
Portland Mills Covered Bridge