#sky  outer space as viewed from the earth
  supertype:  space (pm)  point or extent in space
  part:  cloud.atmospheric_phenomenon  rainbow
  part of:  Earth.terrestrial_planet
  subtype:  blue_sky__blue__blue_air__wild_blue_yonder  the sky as viewed during daylight; "he shot an arrow into the blue"
  subtype:  mackerel_sky  a sky filled with rows of cirrocumulus or small altocumulus clouds

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