someone vs automaton

someone and automaton both are nouns.

Word	Noun	Adjective	Verb	Adverb
someone	Yes	No	No	No
automaton	Yes	No	No	No

someone (noun)	automaton (noun)
a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential	a mechanism that can move automatically
	a machine that operates on its own without the need for human control
	someone who acts or responds in a mechanical or apathetic way