Class uuid
771c42e1-82cb-42ae-9ffa-c9acc3352b65
Lesson uuid
3dbbabac-e3a2-465a-8f07-d6b10c8ff1f4
Location uuid
3a83856e-dff9-43e5-bfe9-6c05a7ee56e0
Person uuid
2881598c-421d-44bf-9d7c-efc71221088a