composer vs Sir Edward Elgar

composer and Sir Edward Elgar both are nouns.

Word	Noun	Adjective	Verb	Adverb
composer	Yes	No	No	No
Sir Edward Elgar	Yes	No	No	No

composer (noun)	Sir Edward Elgar (noun)
someone who composes music, usually as a profession	British composer of choral and orchestral works including two symphonies as well as songs and chamber music and music for brass band (1857-1934)