 But what a way to end this special edition of People Fixing the World from the Africa Prize here in Nairobi, Kenya. Now, we've had lots of great solutions on the programme today. And if you've been inspired by any of them, go ahead and send an email to peoplefixingtheworld at bbc.co.uk. We'd love to hear about them. That's all from me here in Nairobi, Kenya. Thanks for listening.