<people>
<person uid="????">
<name>?????</name>
<name>????</name>
</person>
<person phone="?????">
<name>?????</name>
<name>??????></name>
<name>?????</name>
</person>
</people>
Is the above XML Document not a well formed XML document because each person element contains more that one elements? Also is XSD XML Schema a set of recommendations for valid XML instance documents?