Red China vs Pearl River

Red China and Pearl River both are nouns.

Word	Noun	Adjective	Verb	Adverb
Red China	Yes	No	No	No
Pearl River	Yes	No	No	No

Red China (noun)	Pearl River (noun)
a communist nation that covers a vast territory in eastern Asia; the most populous country in the world	a river in Mississippi that flows southward to the Gulf of Mexico
	a river in southeast China that flows into the South China Sea