Class uuid
cc30c1cd-7428-411e-bb53-827a41afe079
Lesson uuid
d286c86b-5c9d-4702-92c5-e6b57c26e2d6
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
3ce64ac5-3d09-440f-85bb-287e381e2c75