on input types. Keep all candidates if none have any exact matches.
If only one candidate remains, use it; else continue to the next step.
</para>
+</step>
<step performance="required">
<para>
Run through all candidates and keep those with the most exact or
on input types. Keep all candidates if none have any exact matches.
If only one candidate remains, use it; else continue to the next step.
</para>
+</step>
<step performance="required">
<para>
Run through all candidates and keep those with the most exact or