Class uuid
3be61c8f-1ea0-4378-b879-1220d3896713
Lesson uuid
3db6827f-7406-442b-b910-36d89747cd4c
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
3ce64ac5-3d09-440f-85bb-287e381e2c75