type Query {
  me: User
  user(id: ID!): User
  being(id: ID!): Being
  beings(ids: [ID!]!): [Being]!
  lotteryWinner(number: Int!): Lucky
  fail: Boolean
}

type User implements Being & Lucky {
  id: ID!
  name: String!
  luckyNumber: Int
  hair: Hair
}

type Hair { color: String }   # silly name to confuse the name-generator

type Animal implements Being {
  id: ID!
  name: String!
  species: Species!
  owner: Being
  hair: BeingsHair
}

type BeingsHair { hasHair: Boolean! }   # silly name to confuse the name-generator

enum Species {
  DOG
  COELACANTH
}

interface Being {
  id: ID!
  name: String!
}

interface Lucky {
  luckyNumber: Int
}