#Eastern_Orthodox_Church__Orthodox_Church__Orthodox_Catholic_Church__Eastern_Church  derived from the Byzantine Church and adhering to Byzantine rites
  supertype:  Catholic_Church  any of several churches claiming to have maintained historical continuity with the original Christian Church
  subtype:  Greek_Orthodox_Church__Greek_Church  state church of Greece; an autonomous part of the Eastern Orthodox Church
  subtype:  Russian_Orthodox_Church  independent with its own Patriarch of Moscow; until 1917 the established church

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