<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE somedoc [
<!ENTITY a "something">
<!ENTITY b "&a;">
]>
<somedoc>

<somebeacon someattribute="something"/>

something should appear after colon: something
something should appear after colon: something
something should appear after colon: something
something should appear after colon: something

</somedoc>