interface StarWarsCharacter {
  name: String!
}

type Jedi implements StarWarsCharacter {
  name: String!
  lightsaberColor: String
}

type Rebel implements StarWarsCharacter {
  name: String!
  isPilot: Boolean
}

type Sith implements StarWarsCharacter {
  name: String!
  master: Sith
}

// OBS: todas os types que implementam a interface devem declarar os atributos listados na interface