Assertion: porcupine's quill | /r/HasProperty | lost
Facets:
Source sentences:
text: Once a quill is lost, it isn't lost forever.
text: Any quills that are lost will typically regrow.
text: As the quills are lost they are replaced by new ones, which are white and sharp and which remain firmly anchored in the skin until they are fully grown.
text: Any quills that are lost will grow back.