Assertion: heart attack's symptom | /r/HasProperty | immediate
Facets:
Source sentences:
text: Symptoms of a heart attack may be immediate and intense.
text: These symptoms can be immediate, but typically build up over time and even last for days or weeks before an actual heart attack takes place, according to the American Heart Association.
text: Symptoms of a heart attack may be immediate and may include intense discomfort in the chest or other areas of the upper body, shortness of breath, cold sweats, and/or nausea/vomiting.