Assertion: porcupine's quill | /r/HasProperty | black
Facets:
value: with alternating white and black bands
type: OTHER
Source sentences:
text: The crested porcupine has black and white quills along its back and neck.
text: The quills are brown or black with alternating white and black bands.
text: The quills are brown or black with alternating white and black bands.