Lone-Star State vs Red River of the South

Lone-Star State and Red River of the South both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lone-Star State	Yes	No	No	No
Red River of the South	Yes	No	No	No

Lone-Star State (noun)	Red River of the South (noun)
the second largest state; located in southwestern United States on the Gulf of Mexico	a tributary of the Mississippi River that flows eastward from Texas along the southern boundary of Oklahoma and through Louisiana