Assertion: heart failure's symptom | /r/HasProperty | life-threatening
Facets:
Source sentences:
text: In some cases, the condition can be mild, causing symptoms that may only be noticeable when exercising, in others, the condition may be more severe, causing symptoms that may be life-threatening, even while at rest.
text: The symptoms of congestive heart failure can be very mild or quite severe and life-threatening.