poet vs Francis Scott Key

poet and Francis Scott Key both are nouns.

Word	Noun	Adjective	Verb	Adverb
poet	Yes	No	No	No
Francis Scott Key	Yes	No	No	No

poet (noun)	Francis Scott Key (noun)
a writer of poems (the term is usually reserved for writers of good poetry)	United States lawyer and poet who wrote a poem after witnessing the British attack on Baltimore during the War of 1812; the poem was later set to music and entitled `The Star-Spangled Banner' (1779-1843)