Assertion: margarine's oil | /r/CapableOf | become unsafe
Facets:
value: quickly
type: MANNER
Source sentences:
text: Produce fats with a range of different properties for a variety of end uses, for example: Partially hydrogenated frying oil can be used for potato chips to give them a longer shelf-life, because unsaturated or unhydrogenated oils can quickly become rancid or unsafe to eat.