Diazo / XSLT - replace class of content in one of two places in theme

Using Plone 4.3.x

Basically: How can I copy one set of elements from the content to place a and place b in a theme and in place b change an attribute of the copied elements?

Specifically: In my rules.xml file I am <replace>ing two .replace-main-nav in the theme.html with the children of #navigation from the content:

rules.xml:

<replace css:theme=".replace-main-nav"
         css:content-children="#navigation" />

examples of places in theme.html:

<div class="place-a">
    <del class="replace-main-nav"><!-- place nav here --></del>
</div>

<div class="place-b">
    <del class="replace-main-nav"><!-- place nav here again --></del>
</div>

example of nav in content

<div id="navigation">
    <ul>
        <li class="foo">
            Item 1
        </li>
        <li class="foo">
            Item 2
        </li>
        <li class="foo">
            Item 3
        </li>
    </ul>
</div>

I want to replace the attribute class="foo" with class="baa" ONLY when the <ul> replaces .replace-main-nav in .place-b.

Is this possible?

If so how can I do it?

What I want out

<div class="place-a">        
    <ul>
        <li class="foo">
            Item 1
        </li>
        <li class="foo">
            Item 2
        </li>
        <li class="foo">
            Item 3
        </li>
    </ul>
</div>

<div class="place-b">        
    <ul>
        <li class="baa">
            Item 1
        </li>
        <li class="baa">
            Item 2
        </li>
        <li class="baa">
            Item 3
        </li>
    </ul>
</div>

Perhaps this helps?

So something like this? (which is not tested)

<replace css:content-children=".place-b">
  <ul>
  <xsl:for-each select="//*[@id='navigation']/*">
    <li class="baa">
      <xsl:copy-of select="./text()" />
    </li>
  </xsl:for-each>
  </ul>
</replace>