adding xml example for Role based on http://www.w3.org/TR/prov-dm/#example-location
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/eg-40-xml-examples-by-term/xml/Role.xml Mon Aug 20 00:03:21 2012 -0600
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- based on Example 50 from http://www.w3.org/TR/prov-dm/#example-location -->
+<prov:records xmlns:prov="http://www.w3.org/ns/prov#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ex="http://example.com/ns/ex#">
+ <prov:entity prov:id="ex:MonaLisa">
+ <prov:type>StillImage</prov:type>
+ <prov:location>Le Louvre, Paris</prov:location>
+ </prov:entity>
+ <prov:entity prov:id="ex:cell">
+ <prov:location>(5,5)</prov:location>
+ <prov:value>10</prov:value>
+ </prov:entity>
+</prov:records>