Declare-step-005 (AB)

The pipeline

<p:declare-step xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" xmlns:x="http://dummy" version="3.0">
   <p:output port="result"/>
   <p:declare-step type="x:step">
      <p:output port="result"/>
      <p:identity>
         <p:with-input>
            <doc/>
         </p:with-input>
      </p:identity>
   </p:declare-step>
   <p:declare-step type="x:step">
      <p:output port="result"/>
      <p:identity>
         <p:with-input>
            <doc1/>
         </p:with-input>
      </p:identity>
   </p:declare-step>
   <x:step/>
</p:declare-step>