Assertion: cactus's spine | /r/HasProperty | thorn
Facets:
Source sentences:
text: The spines (thorns, stickers) of a cactus are highly modified versions of plant leaves, there are very few cacti species with true plant leaves.
text: The spines (thorns, stickers) of a cactus are highly modified versions of plant leaves, there are very few cacti species with true plant leaves.