Assertion: lead pencil's lead | /r/HasProperty | released
Facets:
value: along with calcium
type: OTHER
value: from the mother's bones
type: LOCATION
value: during pregnancy
type: TEMPORAL
Source sentences:
text: We'll mention clutch pencils briefly too, where the lead is released when you hold down a button, but we consider those to be a separate type.
text: Then usually have a button on the end, and when you press the button, the lead is released.
text: During pregnancy, lead is released from the mother's bones along with calcium and can pass from the mother exposing the fetus or the breastfeeding infant to lead.