<its:rules xmlns:its="http://www.w3.org/2005/11/its" version="1.0">
 <its:termRule selector="//term" term="yes" termInfoPointer="id(@def)"/>
 <its:termRule selector="//syn" term="yes" termInfoRefPointer="@ref"/>
 <its:termRule selector="//dt" term="yes" termInfoPointer="../dd"/>
</its:rules>