Class uuid
72ba5a47-81e5-432d-818d-be232e4dfc58
Lesson uuid
b6de0dea-15a3-4acc-a6cb-cab74f70c6b5
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
c5d994e5-77ac-4ab2-be7e-551cbe35a1d1