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102 CHAPTER 3 Semantic Web
Figure 3.22 Experimenting with the query on W3Schools
(http://www.w3schools.com/xpath/tryit.asp?filename=try
xpath select pricenodes 35)
3.4.2 Resource Description Framework
Resource Description Framework is one of the most exciting new standards to emerge from
the World Wide Web Consortium. RDF is all about metadata and addresses the problem
with XML, which is that the same data can be described in various manners. For instance,
you may use the element “Author” while another person uses “Writer,” and so on. Both of
them probably refer to the same object, but different ...