Red China vs Mekong River

Red China and Mekong River both are nouns.

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

Red China (noun)	Mekong River (noun)
a communist nation that covers a vast territory in eastern Asia; the most populous country in the world	an Asian river; flows through a large delta in southern Vietnam into the South China Sea