Assertion: blue whale | /r/IsA | one of eight species
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: The blue whale is usually classified as one of eight species in the genus Balaenoptera; one authority places it in a separate monotypic genus, Sibbaldus, but this is not accepted elsewhere.
text: The blue whale is usually classified as one of eight species in the genus Balaenoptera; one authority places it in a separate monotypic genus, Sibbaldus, but this is not accepted elsewhere.