Sarvepalli Radhakrishnan vs national leader

Sarvepalli Radhakrishnan and national leader both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sarvepalli Radhakrishnan	Yes	No	No	No
national leader	Yes	No	No	No

Sarvepalli Radhakrishnan (noun)	national leader (noun)
Indian philosopher and statesman who introduced Indian philosophy to the West (1888-1975)	a person who is a respected leader in national or international affairs