#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"
  subtype:  interplanetary_medium  interplanetary space including forms of energy and gas and dust
  part of:  outer_space
  part:  asteroid_belt  the region of interplanetary space between Mars and Jupiter where most asteroids are found

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