Natura - nature
Ref: C. Linnaeus, 1748: 210
   actualia - actual entities
  Ref: A. Voltolini, 2006: 44 (note 19) [assumed position]
     Mundus Plinius - physical world
    Ref: C. Linnaeus, 1758: 5 [indirect position]; 24 Apr 2014.
       artefacta - artefacts
      Ref: J.F. Blumenbach, 1799: [1] [indirect position]
         Product group food products
        Ref: Wikimedia: 23 Jun 2011
           Product margarine
          Ref: Wikimedia: 23 Jun 2011