Cape York Peninsula vs Australia

Cape York Peninsula and Australia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cape York Peninsula	Yes	No	No	No
Australia	Yes	No	No	No

Cape York Peninsula (noun)	Australia (noun)
a peninsula in Queensland in northeastern Australia between the Gulf of Carpentaria and the Coral Sea	a nation occupying the whole of the Australian continent; Aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony
	the smallest continent; between the South Pacific and the Indian Ocean