#material_resource  assets in the form of material possessions
  supertype:  #assets  anything of material value or usefulness
  subtype:  #riches__wealth  an abundance of material possessions and resources
     subtype:  #gold.riches  great wealth; "Whilst that for which all virtue now is sold, and almost every vice--almighty gold"--Ben Jonson
     subtype:  #hoarded_wealth__hoardedwealth__treasure  accumulated wealth in the form of money or jewels etc.; "the pirates hid their treasure on a small island in the West Indies"
        subtype:  #fortune  a large amount of wealth or prosperity
        subtype:  #valuable  something of value; "all our valuables were stolen"
           subtype:  #swag  (informal) valuable goods
           subtype:  #precious_metal  any of the less common and valuable metals often used to make coins or jewelry
              subtype:  #bullion.precious_metal  a mass of precious metal (usually in the form of bars or ingots)
              subtype:  #gold  coins made of gold
              subtype:  #silver  coins made of silver
        subtype:  #king's_ransom  a very large treasure
        subtype:  #trove__treasuretrove  treasure of unknown ownership found hidden (usually in the earth)

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