Assertion: porcupine | /r/HasAspect | some barbing
Facets:
value: on the tip of the quill
type: LOCATION
Source sentences:
text: All the porcupines have some barbing, usually on the tip of the quill, but the brush-tailed porcupine has small saw-tooth barbs lining the sides of each quill, like the tines on a feather.