Nile River vs Soudan

Nile River and Soudan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nile River	Yes	No	No	No
Soudan	Yes	No	No	No

Nile River (noun)	Soudan (noun)
the world's longest river (4150 miles); flows northward through eastern Africa into the Mediterranean; the Nile River valley in Egypt was the site of the world's first great civilization	a republic in northeastern Africa on the Red Sea; achieved independence from Egypt and the United Kingdom in 1956
	a region of northern Africa to the south of the Sahara and Libyan deserts; extends from the Atlantic to the Red Sea