Abu Nidal Organization vs Irak

Abu Nidal Organization and Irak both are nouns.

Word	Noun	Adjective	Verb	Adverb
Abu Nidal Organization	Yes	No	No	No
Irak	Yes	No	No	No

Abu Nidal Organization (noun)	Irak (noun)
a Palestinian international terrorist organization that split from the PLO in 1974; has conducted terrorist attacks in 20 countries	a republic in the Middle East in western Asia; the ancient civilization of Mesopotamia was in the area now known as Iraq