Is There a Moral Concept of Personhood in Pro-Life Articles?

The three main arguments that we are considering here, I mean, you think there's only two sides. So this whole talk of personhood, which is in the Marianne Warren article that we read on the moral and legal status of abortion,. This one by Noonan was 1970. Her article is about personhood. And this is what gets the most press: What counts as a person? Can certain animals count as persons? Could severely retarded people count as person? Is there going to be necessary and sufficient conditions for the moral concept of personhood? Or is it going to be more like a Wittgensteinian cluster concept where there's not going to be any answer for the edge cases