<?xml version="1.0" encoding="UTF-8"?>
<invoice xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:noNamespaceSchemaLocation="example.xsd">
  <date>2017-11-30_INVALID</date>
  <number>5235_INVALID</number>
  <products>
    <product description="laptop" price="700.00_INVALID"/>
    <product price="40.00"/>
    <product description="mouse" price="30.00" INVALID="" />
  </products>
  <payments>
    <payment amount="770.00" method="credit_INVALID"/>
  </payments>
</invoice>
