is XPath possible on property value?

[Malligarjunan Sidduraj]

All,

Can we apply XPath on a particular Property value which is a type of
application/xml.

We can do XPath on JCR tree Hierarchy that I know.
        Ex : "//[EMAIL PROTECTED] = 'wsdl'

In that above example I want apply the XPath on Property value?
Like "//[EMAIL PROTECTED] = (XPATH Query) or some  XPath Query on content?

If it is possible explain me with an example please?

Thanks 
Malligarjunan S