Class uuid
fd8b315a-5504-40c1-89ea-e3287d2883d4
Lesson uuid
3cd7722c-eace-4650-9801-7253227366de
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
27667348-0c3e-48d9-b466-f27f170f2af4