Class uuid
c7f1ab91-a573-4588-8834-0c561135c845
Lesson uuid
1d0ac0fa-9b74-4f55-a2fc-4ff1eab7c7e5
Location uuid
a2c6c6b7-2552-4665-b0d5-9849c4b5395e
Person uuid
13535a51-3f13-469c-a10f-7852b4c67669