File: schema.evdb

Person:
  first_name: string
  last_name: string
  birthdate: integer

User < Person:
  login: string
  password: string
  email: string
  foo: string(bar)


Actor:
  movies: string[]

Politician < Person:
  party: string

Governor < Politician:
  state: string

Bodybuilder < Person:
  favorite_gym: string

ArnoldSchwarzenegger < [Actor, Politician, Bodybuilder]:
  country: string(!!Austria)