<?xml version="1.0" encoding="UTF-8"?>
<!-- WELL-FORMED but INVALID against sample6.xsd, on purpose. -->
<!-- Errors: missing orderId attribute, bad date, bad email, quantity 0, non-numeric price, unexpected element. -->
<purchaseOrder>
    <orderDate>15/01/2026</orderDate>
    <customer>
        <name>Charlie Brown</name>
        <email>charlie.brown-at-example.com</email>
    </customer>
    <items>
        <item sku="MS-120">
            <productName>Optical Mouse</productName>
            <quantity>0</quantity>
            <price>nineteen</price>
            <color>black</color>
        </item>
    </items>
</purchaseOrder>
