South Dakota vs Black Hills

South Dakota and Black Hills both are nouns.

Word	Noun	Adjective	Verb	Adverb
South Dakota	Yes	No	No	No
Black Hills	Yes	No	No	No

South Dakota (noun)	Black Hills (noun)
a state in north central United States	mountains in southwestern South Dakota and northeastern Wyoming; sacred to the Sioux (whites settling in the Black Hills led to the Battle of Little Bighorn); site of Mount Rushmore