[xsl] UNIQUE List of nodes attributes that have a particular value

["Larry Hayashi" <larry_hayashi@xxxxxxxxxxx>]

I am trying to find all the attributes in an XML document that contain a 
particular value.

Given the following data...

<ExampleData>
	<NodeA name="foo"/>
	<NodeA name="larry"/>
	<NodeA name="foo"/>
	<NodeB author="foo"/>
	<NodeB author="larry"/>
	<NodeC reporter="foo"/>
</ExampleData>

I would like to write an XPATH statement that returns this:

	<NodeA name="foo"/>
	<NodeB author="foo"/>
	<NodeC reporter="foo"/>

Note that I am only returning UNIQUE instances of element/attribute 
combinations with the attribute value.

Is this possible using XPATH?

Thanks!

Larry

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