Class uuid
d242451b-740f-41df-beb9-999a65bc952a
Lesson uuid
b966d1e9-efdd-4a3a-91e2-e3d8d6978bdb
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
fa84294b-d589-4f11-b17b-67548f73921b