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]: malware that essentially is a form of social engineering
[EX A]: Trojan horses

[EX Q]: what is the primary type of mining that takes place under the bolivian mountain
[EX A]: silver

[EX Q]: the study of the bumps on the skull to determine personality traits is known as
[EX A]:
Phrenology