human face vs olfactory organ

human face and olfactory organ both are nouns.

Word	Noun	Adjective	Verb	Adverb
human face	Yes	No	No	No
olfactory organ	Yes	No	No	No

human face (noun)	olfactory organ (noun)
the front of the human head from the forehead to the chin and ear to ear	the organ of smell and entrance to the respiratory tract; the prominent part of the face of man or other mammals