Brand
type: Class
subclass of: Restriction
  on property: code
  some values from: string
subclass of: Restriction
  on property: name
  some values from: string
comment: Information on the manufacturer.

Product
type: Class
subclass of: Restriction
  on property: manufacturer
  max qualified cardinality: 1
  on class: Brand
subclass of: Restriction
  on property: code
  some values from: string
subclass of: Restriction
  on property: dataSheet
  some values from: anyURI
comment: Information on the product, as given by the manufacturer