share/GB-IM.xml
<?xml version="1.0" encoding="UTF-8" ?>
<holidays xmlns="https://heigl.org/holidays"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="https://heigl.org/xml/xsd/holidays.xsd"
xmlns:xi="http://www.w3.org/2001/XInclude">
<relative day="7" month="6" relation="next friday" free="true">Tourist Trophy Senior Race Day</relative>
<date day="5" month="7" free="true">Tynwald Day</date>
<xi:include href="GB.xml" parse="xml" xpointer="xpointer(*/*)">
<xi:fallback></xi:fallback>
</xi:include>
</holidays>