| User | Type |
| -------- | -------- |
| email | String |
| password | String |
| name | String |
| location | String |
| age | Number |
| friends | [Object References] |
| about | String |
| posts | [Object References] |

| Post | Type |
| -------- | -------- |
| title | String |
| content | String |
| author | Object Reference |
| comments | [Object References] |

| Comment | Type |
| -------- | -------- |
| header | String |
| body | String |
| author | Object Reference |