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\*.

[EX Q]: who led the metis in the rebellions at red river in 1870 and in the northwest in 1885
[EX A]: Louis Riel

[EX Q]: who does flicks voice in a bug's life
[EX A]: Dave Foley

[EX Q]: where did the tradition of flying flags at half mast come from
[EX A]:
17th century