TASK DEFINITION: In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.
PROBLEM: who came in second in the 2018 kentucky derby

SOLUTION: Good Magic

PROBLEM: who was crowned emperor of the west in 800 ce

SOLUTION: Charlemagne

PROBLEM: what is the population of the des moines area

SOLUTION:
645,911