RIF-PRD Conflict_resolution test rule

I have been trying to understand the RIF-PRD (very helpful documents 
folks) in order to write some rules in RIF. As an exercise I took
a look at some of the test rules on the 
http://www.w3.org/2005/rules/wiki/Category:PRD_Test page and noticed 
that the http://www.w3.org/2005/rules/wiki/Conflict_resolution doesn't 
have an RIF in XML syntax for the Presentation syntax. I tried with to 
write one to see if I understand things and attach my effort. I would be 
grateful if you could let me know if it's valid and if not if you could 
point out where I have gone wrong that would be a great help. If it's ok 
please do feel free to add it to the Test page as an infinitesimal 
contribution.

I was planning to write a python script that would be able to turn the 
Presentation syntax into XML (I would have to restrict it and just 
present the presentation syntax that I see in the RIF-PRD documents).


Many thanks for your help,
adil