#gallon__gal  United States liquid unit equal to 4 quarts or 3.785 liters
  supertype:  #United_States_liquid_unit  a unit of measurement of capacity for liquids officially adopted in the United States Customary System
  part of:  #bbl
  part:  #quart  a United States liquid unit equal to 32 fluid ounces; four quarts equal one gallon
     part:  #pint  a United States liquid unit equal to 16 fluid ounces; two pints equal one quart
        part:  #cup.United_States_liquid_unit  a United States liquid unit equal to 8 fluid ounces
           part:  #gill  a United States liquid unit equal to 4 fluid ounces
              part:  #fluidounce__fluid_ounce  a United States unit of capacity or volume equal to 1.804 cubic inches
                 part:  #fluidram__fluid_dram__fluiddram__fluiddrachm  a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce
                    part:  #minim  a United States liquid unit equal to 1/60 fluidram

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