<modifiers>
<modifier>
<type>unit</type>
- <relation>=</relation>
+ <comparison>=</comparison>
<value>element</value>
</modifier>
<modifier>
<type>distance</type>
- <relation>></relation>
+ <comparison>></comparison>
<value>5</value>
</modifier>
</modifiers>
<searchClause>
<index>dc.author</index>
<relation>
- <value>exact</value>
+ <value>==</value>
</relation>
<term>jones</term>
</searchClause>