#coordinate_system__frame_of_reference__reference_system__referencesystem__reference_frame__referenceframe  a system that uses coordinates to establish position
  supertype:  organisation__arrangement__organization__system  an organized structure for arranging or classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the organization of them that he was original"; "he tried to understand their system of classification"
  subtype:  inertial_reference_frame  space-time_continuum
  part:  coordinate_axis  one of the fixed reference lines of a coordinate system

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