 This is Weekend Edition from NPR News. I'm Danielle Kurtzleben. Take the word sandwich and you get a delicious lunch, preferably toasted, a Massachusetts town on the Cape, and also sandwich generation for those squeezed between caring for children and aging parents. Katherine Newman embraces all of this in her new novel called Sandwich. Welcome, Katherine. Thank you so much. So how did the idea for this book with its very apt title take root in your mind?