Assertion: heart attack | /r/HasProperty | intense
Facets:
Source sentences:
text: Some heart attacks occur suddenly and are intense, but most start slowly with only mild pain or discomfort.
text: Although some heart attacks are sudden and intense, most start slowly, with mild pain or discomfort.
text: Some heart attacks are sudden and intense — where no one doubts what's happening.
text: A heart attack can start slowly and be mild, or come on suddenly and be intense.
text: While some heart attacks are intense and very quick, many start slowly with mild pain or aches.