Example Grammar File to Match Months
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE grammars SYSTEM "../published/edk.dtd">
<grammars version="4.0">
<include path="winter_names.ecr" type="private"/>
<grammar name="example">
<entity name="spring_month" type="private">
<pattern>[Mm]ar(ch|\.)</pattern>
<entry headword="April"/>
<entry headword="april"/>
<entry headword="Apr"/>
<entry headword="apr"/>
<entry headword="Apr."/>
<entry headword="apr."/>
<pattern replace="May">[Mm]ay\.?</pattern>
<entry headword="June">
<synonym>Jun</synonym>
<synonym>Jun.</synonym>
<synonym>june</synonym>
<synonym>jun</synonym>
<synonym>jun.</synonym>
</entry>
</entity>
<entity name="summer_month" type="private" case="insensitive">
<entry headword="June"/>
<entry headword="July"/>
<entry headword="August"/>
<entry headword="September"/>
</entity>
<entity name="month" type="public">
<pattern>(?A^spring_month)</pattern>
<pattern>(?A:summer_month)</pattern>
<entry headword="September"/>
<entry headword="October"/>
<entry headword="November"/>
<entry headword="December"/>
<pattern>(?A^winter_month)</pattern>
<!-- spelling mistakes -->
<entry score="0.5" headword="Febuary"/>
</entity>
</grammar>
</grammars>