#equal-area_projection__equal-area_map_projection  a map projection in which quadrilaterals formed by meridians and parallels have an area on the map proportional to their area on the globe
  supertype:  #map_projection__mapprojection  a projection of the globe onto a flat map using a grid of lines of latitude and longitude
  subtype:  #homolosine_projection  an equal-area projection map of the globe; oceans are distorted in order to minimize the distortion of the continents
  subtype:  #sinusoidal_projection__Sanson-Flamsteed_projection  an equal-area map projection showing parallels and the equator as straight lines and other meridians as curved; used to map tropical latitudes

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