Extra fields removed for brevity
<add>
<doc>
<field name='content'>%3Ca+href%3D%22monkey%22%3Efrogs%3C%2Fa%3Erabbit</field>
</doc>
</add>


<add>
<doc>
<field name='content'><![CDATA[<a href="monkey">frogs</a>]]></field>
</doc>
</add>

<add>
<doc>
<field name='content'><a href="monkey">frogs</a></field>
</doc>
</add>