Here's the XML:

<translation>
	<sentence>
		<key>test</key>
		<value>Hi, I am a test sentence</value>
	</sentence>
	<sentence>
		<key>test_explanation</key>
		<value>Hi, I am the test explanation</value>
	</sentence>
	<sentence>
		<key>contestable</key>
		<value>Hi, I am a totally extraneus text</value>
	</sentence>
</translation>