Facet A : Subject
  A1 : Science
  A1.1 : Physics
  A1.1.1 : Optics
Facet B : Grade Level
  B1 : High School
  B1.1 : 10th Grade


##</code><code>##

Facet A : Use
  A1 : Utensil
  A1.1 : Spoon
  A1.2 : Whisk
  A2 : Pan
  A2.1 : Roasting Pan
  A2.1.1 : Covered Roasting Pan
  A2.1.2 : Uncovered Roasting Pan
Facet B : Material
  B1 : Metal
  B1.1 : Stainless Steel
  B1.2 : Aluminum
  B1.3 : Cast Iron
  B1.3.1 : Enameled Cast Iron
  B2 : Ceramic
  B2.1 : Glass
  B2.1.1 : Pyrex
  B2.2 : Stone
Facet C : Size
  C1 : 1 qt
  C2 : 2 qt
  C2.1 : 2 qt, shallow