test.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<config>

<!-- the original language -->
<sourceLanguage>spa</sourceLanguage>

<!-- the fields and subfields to be processed -->
<fields>

<field tag="650" indicator2="0">
<copy>c</copy>
<copy>d</copy>
<translate>a</translate>
<translate>z</translate>
<sourceSubfield>a</sourceSubfield>
</field>

<field tag="600">
<copy>w</copy>
<copy>o</copy>
<translate>f</translate>
<translate>g</translate>
<sourceSubfield>a</sourceSubfield>
</field>

</fields>

<!-- the rule mappings themselves -->
<rules>

<rule field="650" subfield="a">
<original>goodbye</original>
<translation>adios</translation>
<source>bogus</source>
</rule>

<rule field="650" subfield="a">
<original>hello</original>
<translation>hola</translation>
<source>bogus</source>
</rule>

</rules>

</config>