#United_States_liquid_unit  a unit of measurement of capacity for liquids officially adopted in the United States Customary System
  supertype:  #liquid_unit__liquid_measure  a unit of capacity for liquids (for measuring the volumes of liquids or their containers)
  subtype:  #minim  a United States liquid unit equal to 1/60 fluidram
  subtype:  #fluidram__fluid_dram__fluiddram__fluiddrachm  a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce
  subtype:  #fluidounce__fluid_ounce  a United States unit of capacity or volume equal to 1.804 cubic inches
  subtype:  #gill  a United States liquid unit equal to 4 fluid ounces
  subtype:  #cup.United_States_liquid_unit  a United States liquid unit equal to 8 fluid ounces
  subtype:  #pint  a United States liquid unit equal to 16 fluid ounces; two pints equal one quart
  subtype:  #fifth  a quantity of liquor equal to one fifth of a United States gallon
  subtype:  #quart  a United States liquid unit equal to 32 fluid ounces; four quarts equal one gallon
  subtype:  #gallon__gal  United States liquid unit equal to 4 quarts or 3.785 liters
  subtype:  #bbl__barrel  any of various units of capacity; "a barrel of beer is 31 gallons and a barrel of oil is 42 gallons"

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