Assertion: pacemaker's lead | /r/HasProperty | positioned in the heart
Facets:
value: to help
type: PURPOSE
Source sentences:
text: The device has 2 or 3 leads (wires) that are positioned in the heart to help the heart beat in a more balanced way.
text: A biventricular pacemaker has 2 or 3 leads (wires) that are positioned in the heart to help the heart beat in a more balanced way.