Assertion: viper's venom | /r/MadeOf | cytotoxin
Facets:
value: mainly
type: DEGREE
Source sentences:
text: the venom of the black-necked spitting cobra (Naja nigricollis), an elapid, consists mainly of cytotoxins, while that of the Mojave rattlesnake (Crotalus scutulatus), a viperid, is primarily neurotoxic.