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]: the ghent altarpiece which represents the divine was threatened by
[A]: outbreaks of iconoclasm


[Q]: who won the title of world chess championship in 2017
[A]: Armenian grandmaster Levon Aronian


[Q]: who invaded the island of iwo jima japan
[A]:
the United States Marine Corps