Lab 2 - Downgrade a Classified Document to Unclassified

In this folder you will find Weather.xml 

Open it and examine it.

It contains weather data. Each element has a
classification attribute. Currently the document is secret.
You want to downgrade the document to unclassified, to make
it available to unclassified individuals. By removing the secret
<Source> element the document can be downgraded. So, you are to:

1. Remove the <Source> element.

2. Change the <Weather> element's classification to "U".

Name your XQuery Update file: downgrade.xu