Class uuid
80fe12a1-0426-4ae1-97a5-71d683265f98
Lesson uuid
514e6d56-6ea5-42f5-93d3-aead6e478e4c
Location uuid
5e63f58c-4034-45e5-af0d-6ae4396b3feb
Person uuid
3ce64ac5-3d09-440f-85bb-287e381e2c75