s:
  id: 1 
  name: 'Size: S'
  variable_id: 7 #pants
  variable_type: Category
m:
  id: 2
  name: 'Size: M'
  variable_id: 9 #hats
  variable_type: Category  
l:
  id: 3
  name: 'Size: L'
  variable_id: 8 #foo shirt
  variable_type: Product