1.I wasn't sure if it being an instance of human would imply that. Subclass may make more sense.
2.I think that needs a separate term other than person – at least in current understanding and use the term wouldn't fit to let's say sentient intelligent living extraterrestrial-origin beings / aliens. One would need a separate term for that. Animals also are not persons, they may be legal persons for the lack of better legal terms/… but not persons in principle insofar the term has been established and is widely used.
3. Human is not a subclass of person but the other way around. Infants and probably few days pre-birth babies are humans but not necessarily persons. Please fix that.
4. In conclusion, please allow me to remove or remove subclass of person on the human item and add subclass of: human or, probably better, Homo. And if not specify exactly why or suggest me some place to take this matter for broader debate.