Assertion: heart attack's symptom | /r/HasProperty | noticeable
Facets:
Source sentences:
text: Silent heart attacks To make matters even more complicated, some heart attacks occur without any traditional symptoms, or even any noticeable symptoms at all.
text: In 20% of cases, heart attacks are "silent" and have no noticeable symptoms at all.
text: These symptoms may be vague and not as noticeable as the crushing chest pain often associated with heart attacks.