Class uuid
f8eaf0b6-4aaf-4932-9668-a9dbee3c6aeb
Lesson uuid
4d4b47b1-3db4-416c-aed6-80e9b7d2fa9f
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
5a5f2d4a-9830-4db0-8250-0a362e45f825