Assertion: fibrillation's symptom | /r/HasProperty | severe
Facets:
value: sometimes
type: DEGREE
Source sentences:
text: Symptoms can be mild or severe and last for seconds, minutes, hours, or days.
text: Sometimes AFib has no symptoms, and sometimes symptoms can be mild or severe.
text: Treatments Treatment for arrhythmia is only necessary if the condition is increasing the risk of more severe arrhythmia or a complication, or if the symptoms are severe.