query gqlPersons {
  persons {
    id
    fullName
    shortName
  }
}

query gqlGroups {
  groups {
    id
    name
  }
}

query gqlTeachers {
  persons: teachers {
    id
    fullName
    shortName
    subjectsAsTeacher {
      id
      name
      shortName
      colourFg
      colourBg
    }
  }
}