#interplanetary_space  the part of outer space within the solar system
  supertype:  #region.location__part  the extended spatial location of something; "the farming regions of France"; "religions in all parts of the world"; "regions of outer space"
  part:  #asteroid_belt
  part of:  #outer_space
  subtype:  #interplanetary_medium  interplanetary space including forms of energy and gas and dust

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