Class uuid
66c5ba65-b9f0-40e6-815d-5409913d5436
Lesson uuid
31e7fcec-c7c2-48b4-b0da-41ff5cd63004
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
2fda9710-70c6-4b52-9d96-8d163e39cd14