Assertion: elk | /r/CapableOf | become aggressive
Facets:
Source sentences:
text: Although generally slow-moving and sedentary, moose can become aggressive and move quickly if angered or startled.
text: But if bothered by other animals or humans, they become aggressive.
text: The moose is usually a peaceful animal but can become aggressive when it is threatened.
text: Although usually slow moving, moose can become agile and aggressive when frightened or angered.