The pipeline
<p:declare-step xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result"/>
<p:add-xml-base relative="true" all="true">
<p:with-input href="../documents/doc-with-entities.xml"/>
</p:add-xml-base>
</p:declare-step>
