Class uuid
38bf2fe9-3992-4b56-9f51-134f599255fa
Lesson uuid
14f083aa-ebb9-45ff-8418-6ba3cc9dc8da
Location uuid
916222ed-ba80-4784-ad5d-2e119e5a261c
Person uuid
78ac61ae-619a-4f8d-9582-e3d24ca58a16