Class uuid
8410191c-1c97-4e4e-aa09-91a8961a8132
Lesson uuid
2f94c8f0-d4ba-4cab-9b75-179fb27f3017
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
3ce64ac5-3d09-440f-85bb-287e381e2c75