<all>
    <field1>val1</field1>
    <field2>val2</field2>
    <field3>val3</field3>
    <compositeA attr1="av11" attr2="av21" attr3="av31"/> 
    <compositeA attr1="av21" attr2="av22" attr3="av23"/>
    <compositeA attr1="av31" attr2="av32" attr3="av33"/>
    <compositeB attrx="avx" attry="avy"/> 
</all>

