Binding outputs

Is the following intended to be legal:

  <p:group>
    <p:output port="output">
      <p:inline>
        <doc/>
      </p:inline>
    </p:output>
  </p:group>

What about this?

  <p:group>
    <p:output port="output">
      <p:pipe step="foo" port="result"/>
      <p:inline>
        <doc/>
      </p:inline>
    </p:output>

    <p:load name="foo">
      <p:option name="href" select="'http://example.com/xml/doc.xml"/>
    </p:load>
  </p:group>

What about this?

  <p:identity>
    <p:input port="source">
      <p:inline>
        <doc/>
      </p:inline>
    </p:input>
    <p:output port="result">
      <p:inline>
        <doc/>
      </p:inline>
    </p:output>
  </p:identity>

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | It is a general error to imagine the
http://nwalsh.com/            | loudest complainers for the public to
                              | be the most anxious for its
                              | welfare.--Edmund Burke, 1769