Properties (cont.)

• Properties are also resources (named via URI–s)…

• So properties of properties can be expressed as… RDF properties

• • this twists your mind a bit, but you can get used to it

• For example, (P rdfs:range C) means:

• • P is a property
  • C is a class instance
  • when using P, the “object” must be an individual in C

• This is an RDF statement with subject P, object C, and property rdfs:range