Parsing XML using Google Refine

[shedodido]

I'm using Google-refine to download information from Google Maps. More specifically, I want the lat/long associated with a given address. I have successfully downloaded the XML information, but I'm having a horrible time parsing it. The typical entry looks like:http://maps.googleapis.com/maps/api/geocode/xml?address=543+Boler+Rd,+London,+Ontario&sensor=falseMy question is : How do i extract the lat (or long values) from this output using the language GREL. Thanks in advance, Carlos