Assertion: gaboon viper | /r/CapableOf | belong for year
Facets:
value: to belong to the single species
type: PURPOSE
Source sentences:
text: For years, all Gaboon vipers were considered to belong to the single species Bitis gabonica, with two subspecies, the East African Gaboon (B. g. gabonica) and the West African Gaboon (B. g. rhinoceros).