Here are some documents for you to reference for your task:
<documents<document index="1"<source
(a unique identifying source for this item - could be a URL, file name, hash, etc)
</source<document_content
(the text content of the document - could be a passage, web page, article, etc)
</document_content</document<document index="2"<source
(a unique identifying source for this item - could be a URL, file name, hash, etc)
</source<document_content
(the text content of the document - could be a passage, web page, article, etc)
</document_content</document