Assertion: cactus's thorn | /r/CapableOf | become harmless
Facets:
value: perfectly
type: DEGREE
value: often
type: DEGREE
Source sentences:
text: And on some of the South Sea Islands where vegetation is abundant and browsing animals few, the Opuntias having no use for thorns have either reverted back to thornlessness or often the thorns have become hair-like, diminished and perfectly harmless.