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\*.

Example Input: who walked the tightrope between the twin towers
Example Output: Philippe Petit

Example Input: how did kurtz die in the heart of darkness
Example Output: jungle fever

Example Input: what percentage of the world population is north america
Example Output:
22.9