Japan vs Volcano Islands

Japan and Volcano Islands both are nouns.

Word	Noun	Adjective	Verb	Adverb
Japan	Yes	No	No	No
Volcano Islands	Yes	No	No	No

Japan (noun)	Volcano Islands (noun)
a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building	a group of Japanese Islands in the northwestern Pacific Ocean to the north of the Marianas
a string of more than 3,000 islands to the east of Asia extending 1,300 miles between the Sea of Japan and the western Pacific Ocean