Assertion: stethoscope's bell | /r/HasProperty | the side
Facets:
Source sentences:
text: Diaphragms — the side of the head with a solid disc — are great for listening to relatively higher-frequency breath sounds and bowel sounds, but for low-frequency heart tones and murmurs you will want a bell — the side that's hollow.
text: … and murmurs you will want a bell — the side that’s hollow.