We're at the playground. Max is turning a steering wheel on a jungle gym; Sabrina's standing nearby and talking with another little girl.
Carly: "Why doesn't Max talk?"
Sabrina: "He needs special needs."
It's a start! She'll get the wording right soon enough; I liked that she said it so matter-of-factly. I know that as she gets older, she'll get lots more questions about her big brother, and I hope that she'll answer them in the same friendly, straightforward way.