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\*.

[Q]: who is usually responsible for writing unit tests
[A]: software developers


[Q]: who was crowned emperor of the west in 800 ce
[A]: Charlemagne


[Q]: persuasive authority which judges may use in cases of first impression
[A]:
academic law reviews