MT-Confidence Output issue Attributes

Hey Guys,
     I'm having some issues trying to get my parser to output 
mt-confidence correctly. As far as I'm aware the mt-confidence's data 
category information is inherited by the textual content of the element, 
including child elements, *but excluding attributes*.
So in my datacategories-definition.xml I have the following line of code 
to deal with this:

<inheritance appliesTo="onlyElements"/>

I end up with the following output for mtconfidence3xml.xml:

/text
/text/@its:version
/text/body[1]
/text/body[1]/p[1]
/text/body[1]/p[1]/span[1] 
annotatorsRef="mt-confidence|file:///tools.xml#T1" mtConfidence="0.6982"
/text/body[1]/p[1]/span[1]/@its:annotatorsRef
/text/body[1]/p[1]/span[1]/@its:mtConfidence
/text/body[1]/p[1]/span[2] 
annotatorsRef="mt-confidence|file:///tools.xml#T2" mtConfidence="0.7982"
/text/body[1]/p[1]/span[2]/@its:annotatorsRef
/text/body[1]/p[1]/span[2]/@its:mtConfidence
/text/body[1]/p[1]/span[3] 
annotatorsRef="mt-confidence|file:///tools.xml#T3" mtConfidence="0.9982"
/text/body[1]/p[1]/span[3]/@its:annotatorsRef
/text/body[1]/p[1]/span[3]/@its:mtConfidence
/text/body[1]/p[1]/span[4] 
annotatorsRef="mt-confidence|file:///tools.xml#T4" mtConfidence="0.6982"
/text/body[1]/p[1]/span[4]/@its:annotatorsRef
/text/body[1]/p[1]/span[4]/@its:mtConfidence

However the expected output shows rules on the attributes:
/text
/text/@its:version
/text/body[1]
/text/body[1]/p[1]
/text/body[1]/p[1]/span[1] 
annotatorsRef="mt-confidence|file:///tools.xml#T1" mtConfidence="0.6982"
/text/body[1]/p[1]/span[1]/@its:annotatorsRef 
*annotatorsRef="mt-confidence|file:///tools.xml#T1" *
/text/body[1]/p[1]/span[1]/@its:mtConfidence 
*annotatorsRef="mt-confidence|file:///tools.xml#T1" *
/text/body[1]/p[1]/span[2] 
annotatorsRef="mt-confidence|file:///tools.xml#T2" mtConfidence="0.7982"
/text/body[1]/p[1]/span[2]/@its:annotatorsRef 
*annotatorsRef="mt-confidence|file:///tools.xml#T2" *
/text/body[1]/p[1]/span[2]/@its:mtConfidence 
*annotatorsRef="mt-confidence|file:///tools.xml#T2" *
/text/body[1]/p[1]/span[3] 
annotatorsRef="mt-confidence|file:///tools.xml#T3" mtConfidence="0.9982"
/text/body[1]/p[1]/span[3]/@its:annotatorsRef 
*annotatorsRef="mt-confidence|file:///tools.xml#T3" *
/text/body[1]/p[1]/span[3]/@its:mtConfidence 
*annotatorsRef="mt-confidence|file:///tools.xml#T3" *
/text/body[1]/p[1]/span[4] 
annotatorsRef="mt-confidence|file:///tools.xml#T4" mtConfidence="0.6982"
/text/body[1]/p[1]/span[4]/@its:annotatorsRef 
*annotatorsRef="mt-confidence|file:///tools.xml#T4" *
/text/body[1]/p[1]/span[4]/@its:mtConfidence 
*annotatorsRef="mt-confidence|file:///tools.xml#T4" *

If anyone has any ideas I'd be grateful.
Thanks,
Philip