Assertion: porcupine's quill | /r/HasAspect | a fluorescent quality
Facets:
Source sentences:
text: The quills also have a fluorescent quality which makes them appear brighter and whiter in low light, when porcupines are most active and likely to encounter a predator.
text: The quills also have a fluorescent quality which makes them appear brighter and whiter in low light, when porcupines are most active and likely to encounter a predator.