[dsdl-comment] Section with a child section (which is attached to its parent), and the child section itself has a child section (which is not attached to its parent)

Hi Folks,
 
I have a <Diary> section which has an <Activity> element that can
contain anything (open content). In the <Activity> element I placed a
<Work> section. And in the <Work> section I nested a <Distance>
section:
 
-----------------------------------------------------------------------
---------------
Diary.xml
-----------------------------------------------------------------------
---------------
<?xml version="1.0"?>
<Diary xmlns="http://www.diary.org">
    <Activity>
        <Work xmlns="http://www.work.org">
            <StartTime>07:45:00</StartTime>
            <EndTime>16:30:00</EndTime>
            <Distance xmlns="http://www.distance.org">24
miles</Distance>
        </Work>
    </Activity>
</Diary>
 
Here is my NVDL script:
 
-----------------------------------------------------------------------
---------------
Diary.nvdl
-----------------------------------------------------------------------
---------------
<?xml version="1.0"?>
<rules xmlns="http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0
<http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0> "
          startMode="diary">

     <mode name="diary">
         <namespace ns="http://www.diary.org <http://www.diary.org> ">
             <validate schema="Diary.xsd"
                           useMode="activity" />
         </namespace>
     </mode>

     <mode name="activity">
         <namespace ns="http://www.work.org <http://www.work.org> ">
             <validate schema="Work.rng"
                           useMode="distance"/>
             <attach/>
         </namespace>
     </mode>

     <mode name="distance">
         <namespace ns="http://www.distance.org
<http://www.distance.org> ">
             <validate schema="Distance.xsd"/>
         </namespace>
     </mode>

</rules>

When I run it, I get this error message from oNVDL:
 
Diary.xml:7:55: error: elements from namespace "http://www.distance.org
<http://www.distance.org > " are not allowed.
 
Would you tell me what I am doing wrong, please? Below is Diary.xsd,
Work.rng, and Distance.xsd.
 
Thanks! /Roger
 
-----------------------------------------------------------------------
---------------
Diary.xsd
-----------------------------------------------------------------------
---------------
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
                   targetNamespace="http://www.diary.org"
                   xmlns="http://www.diary.org"
                   elementFormDefault="unqualified">

    <xs:element name="Diary">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="Activity" maxOccurs="unbounded"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>

    <xs:element name="Activity">
        <xs:complexType>
            <xs:sequence>
                <xs:any namespace="##other" processContents="lax" />
            </xs:sequence>
        </xs:complexType>
    </xs:element>

</xs:schema>
 
-----------------------------------------------------------------------
---------------
Work.rng
-----------------------------------------------------------------------
---------------
<?xml version="1.0" encoding="UTF-8"?>
<element name="Work" xmlns="http://relaxng.org/ns/structure/1.0"
 
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes"
              ns="http://www.work.org">

      <element name="StartTime">
          <data type="time"/>
      </element>

      <element name="EndTime">
          <data type="time"/>
      </element>

</element>
 
-----------------------------------------------------------------------
---------------
Distance.xsd
-----------------------------------------------------------------------
---------------
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
                   targetNamespace="http://www.distance.org"
                   elementFormDefault="unqualified">
 
    <xs:element name="Distance" type="xs:string" />
 
</xs:schema>

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