Generic Change Tracking, example 6.4.2 the latter andcanonicalization of text:style-name

<text:p>
Here is some 
  <text:span delta:insertion-type='insert-around-content' 
             delta:insertion-change-idref='ct2' text:style-name="bold-style">
  text 
  <delta:remove-leaving-content-start delta:removal-change-idref='ct2'
                                      delta:end-element-idref='ee888' />
      <text:span text:style-name="bold-style"/>
  </delta:remove-leaving-content-start>
  where the 
  <text:span delta:insertion-type='insert-around-content' 
             delta:insertion-change-idref='ct1'
             text:style-name="italic-style">
     decoration
  </text:span>
  is 
  </text:span>
  changed
  <delta:remove-leaving-content-end delta:end-element-id='ee888'/>
  several times.
</text:p>