#school_principal__principal__head_teacher__head  the educator who has executive authority for a school; "she sent unruly pupils to see the principal"
  supertype:  educator__pedagogue  someone who educates
  subtype:  chancellor  (British) the honorary or titular head of a university
  subtype:  headmaster__schoolmaster__master  presiding officer of a school
     subtype:  housemaster  teacher in charge of a school boardinghouse
  subtype:  headmistress  a woman headmaster

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