Seychelles islands vs Indian Ocean

Seychelles islands and Indian Ocean both are nouns.

Word	Noun	Adjective	Verb	Adverb
Seychelles islands	Yes	No	No	No
Indian Ocean	Yes	No	No	No

Seychelles islands (noun)	Indian Ocean (noun)
a group of about 90 islands in the western Indian Ocean to the north of Madagascar	the 3rd largest ocean; bounded by Africa on the west, Asia on the north, Australia on the east and merging with the Antarctic Ocean to the south