#phase_of_cell_division  a stage in meiosis or mitosis
  supertype:  #phase.time_period__stage  any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"
  subtype:  #anaphase  the stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle
  subtype:  #metaphase  the second stage of mitosis
  subtype:  #metaphase.phase_of_cell_division  the second stage of meiosis
  subtype:  #prophase  the first stage of mitosis
  subtype:  #prophase.phase_of_cell_division  the first stage of meiosis
  subtype:  #telophase  the final stage of mitosis
  subtype:  #telophase.phase_of_cell_division  the final stage of meiosis when the chromosomes move toward opposite ends of the nuclear spindle

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