# Introduction To Schemas

Each registry can store data as entities. The example registry we setup using CLI already has two types of entities: `Teacher` and `Student`. To view the schemas, run the following in the directory you setup the registry:

```
$ cat config/schemas/student.json
$ cat config/schemas/teacher.json
```

> Or you could view the schemas [on Github](https://github.com/sunbird-rc/sunbird-rc-core/tree/main/tools/cli/src/templates/config/schemas).

A teacher is represented by 5 fields: `name`, `phoneNumber`, `email`, `subject` and `school`, out of which `name`, `phoneNumber`, `email` and `school` are required fields. `subject` can be any one of Math, Hindi, English, History, Geography, Physics, Chemistry, and Biology.

A student is represented by 4 fields: `name`, `phoneNumber`, `email`, and `school`, all of which are required fields. When setting `school` field, you are making a 'claim' (i.e., that the student is from the specified school), which can be 'attested' (i.e., confirmed to be true) by a teacher from the same school.