Class uuid
2b3b5e89-2001-41fb-9f85-879df13ad4c6
Lesson uuid
e1348391-c18f-431b-bfbe-bbc8245ca121
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
e70c6132-135f-43f7-8f07-ce75d6104864