<?xml version="1.0" standalone="no"?>
<!-- extension test 5 : extending various quantities within
     the http://ivoa.org/Quantity namespace for our document. 
     This has the advantage that we dont need to specify a 
     different namespace for elements of quantity. Compare this
     example to ext2.xml
-->
<mydocument xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
          xsi:schemaLocation="http://ivoa.org/Quantity MyIncDocument.xsd"
          xmlns="http://ivoa.org/Quantity"
>

	<!-- test: two quantities I created, one inherits
		characteristics of "basic" other, "trivial"
	 -->
	<myquantity>
		<metaData>
			<note>a note on my quantity, which is itself, a quantity</note>
		</metaData>
   		<value>some data in a basic node</value>
	</myquantity>

	<mytq>some trivial quantity</mytq>

	<!-- test: basic quantity I created, that has more meta-data..
             a mixture of both 'cannonical' and 'extended' quanities
         -->
	<myquantity>
		<metaData>
			<mytq>some meta-data</mytq>
			<basicQuantity>
                     		<ucd>meta.ref</ucd>
                     		<value>string</value>
                	</basicQuantity>
		</metaData>
   		<value>some data in a basic node</value>
	</myquantity>

	<!-- test: next 2 quanities are cannonical -->
	<trivialQuantity>dude is a lady </trivialQuantity>
	<basicQuantity>
		<value>some meta-data</value>
	</basicQuantity>

</mydocument>
