Planned Parenthood can & should say the following:

South Dakota has defined a human being as including everything from a fertilized egg that isn't even implanted (of which 30% never do implant) to your grandfather. According to this definition, an abortion eliminates a "separate human being." Then again, so does having your period.

Hey! If you were an implanted baby, you would see things differently.

As Colbert would say; this law is chock full of truthiness.