Assertion: horned viper | /r/HasAspect | horn
Facets:
value: at the top of its nose
type: LOCATION
Source sentences:
text: They include the Saharan horned viper or desert horned viper (Cerastes cerastes), the Arabian horned viper or Middle Eastern horned viper (Cerastes gasperettii), the horned puff adder (Bitis caudalis) and the nose-horned viper (Vipera ammodytes), which has a horn at the top of its nose.
text: Not all horned vipers have horns; sometimes the same clutch of eggs will yield animals with and without horns.